Maymand is running for 2015. It used the 3 years rule for referrals to get in.

M'Banza Congo (Angola) - 2016 Incompl
Ouidah (Benin) - 2001 Incompl
Parati (Brazil) - 2009 Def, 2012 Incompl, 2013 Incompl, 2016 Incompl
Ennedi (Chad) - 2015 Incompl
Juan Fernandez NP (Chile) � 1995 Ref (Protection concerns)
Chinese Altay (China) - 2015 Incompl
Zadar (Croatia) � 2012 Ref (AB wanted Def)
Cienaga de Zapata (Cuba) - 2005 Incompl
Erzgebirge (Czech. Rep, Germany) - 2015 postponed
Parque del Este (Dominican Rep.) - 2003 Ref (survey program needed etc)
Zaruma (Ecuador) - 2015 Incompl
Jebel Qatrani (Egypt) � 2008 Incompl
Dirre Sheik Hussein (Ethiopia) - 2016 Incompl
Holqa Sof Omar (Ethiopia) - 2016 Incompl
Puys (France) - 2014 Ref
Minkebe (Gabon) � 2005 Ref (Better doc, protection + transboundary nom encompassing the Baka community)
Vardzia-Khertvisi (Georgia) - 2001 Postponed
Mole (Ghana) - 2016 Incompl
Majuli (India) - 2006 Ref , 2008 Def , 2012 - Incompl
Hyderabad (India) � 2012 Incompl, 2014 Postponed
Mumbai (India) - 2015 Postponed
Tana Toraja (Indonesia) - 2001 Incompl, 2014 Incompl
Marshlands of Mesopotamia (Iraq) - 2015 postponed
Ur (Iraq) - 2015 postponed
Babylon (Iraq) - 2016 Incompl
Jerash (Jordan) � 1985 Def (Boundaries/Man Plan) , 1986 Def, 1995 Ref (Buff zone, festival)
Western Tian Shan (Kazakhstan, Kyrgyzstan, Uzbekistan) - 2015 Incoml
Thimlich Ohniga (Kenya) - 2014 Incompl, 2015 Ref
Zuma de l'Isandra (Madagascar) - 2013 Ref
Northern Marshall Islands Atoll (Marshalls) - 2010 Incompl
Cosala (Mexico) - 2008 Incompl, 2009 Incompl
Centla and Terminos (Mexico) - 2010 Incompl
Orheiul Vechi (Moldova) - 2009 Withdr, 2016 Incoml
Yapese money sites (Palau and Micronesia) � 2010 Incompl
Daurian landscape (Mongolia, Russia) - 2014 Incompl, 2015 Ref
Surame (Nigeria) � 2012 Incompl
Harappa (Pakistan) � 1980 Rej, 2008 Incompl (with Mehgarh and Rehman Dheri)
Hiran Minar (Pakistan) � 2011 Incompl
Batanes (Philippines) � 2007 Ref (More info and addit islands)
Kremlins (Russia) - 2011 Incompl, 2012 Ref (AB wanted reject)
Devil's Town (Serbia) � 2010 Incompl
Mt. Sara (Serbia) - 2008 Incompl
Seruwila (Sri Lanka) � 2008 Incompl
Dongola (Sudan) � 1993 Ref (bigger area needed)
Sanganeb (Sudan) - 2014 Incompl, 2015 Ref
Silk Road (Tajikistan, Turkmenistan, Uzbekistan) - 2014 Ref
Slave and Ivory Route (Tanzania) � 2010 Incompl, 2011 Incompl, 2012 Incompl
Kaeng Krachan (Thailand) - 2015 Ref
Aphrodisias (Turkey) - 2016 Incompl
Alanya (Turkey) - 2010 Incompl
Mardin (Turkey) - 2003 Withdr, 2012 Incompl, 2013 Ref
Badhyz (Turkmenistan) - 2016 Incompl
Nyero (Uganda) - 2015 Ref
Bakhchysarai (Ukraine) - 2014 Incompl, 2015 Incompl
Frank Lloyd (USA) - 1991 Ref (more comparative info required)
Termiz (Uzbekistan) � 2012 Incompl, 2013 Incompl, 2014 Incompl
Bakhrum Mausoleum (Uzbekistan) � 2012 Incompl
Rabati Malik (Uzbekistan) � 2012 Incompl
Sarmisshay (Uzbekistan) � 2012 Incompl, 2013 Incompl
Barotse (Zambia) � 2013 Incompl, 2014 Ref

Update of the list. Sites candidating for 2016 and 2017 are in bold:

M'Banza Congo (Angola) - 2016 Incompl
Ouidah (Benin) - 2001 Incompl
Parati (Brazil) - 2009 Def, 2012 Incompl, 2013 Incompl, 2016 Incompl
Ennedi (Chad) - 2015 Incompl
Zakouma (Chad) - 2017 Incompl
Juan Fernandez NP (Chile) � 1995 Ref (Protection concerns)
Chinese Altay (China) - 2015 Incompl
Zadar (Croatia) � 2012 Ref (AB wanted Def)
Cienaga de Zapata (Cuba) - 2005 Incompl
Erzgebirge (Czech. Rep, Germany) - 2015 postponed
Parque del Este (Dominican Rep.) - 2003 Ref (survey program needed etc)
Zaruma (Ecuador) - 2015 Incompl
Jebel Qatrani (Egypt) � 2008 Incompl
Dirre Sheik Hussein (Ethiopia) - 2016 Incompl
Holqa Sof Omar (Ethiopia) - 2016 Incompl
Puys (France) - 2014 Ref
Minkebe (Gabon) � 2005 Ref (Better doc, protection + transboundary nom encompassing the Baka community)
Vardzia-Khertvisi (Georgia) - 2001 Postponed
Mole (Ghana) - 2016 Incompl
Majuli (India) - 2006 Ref , 2008 Def , 2012 - Incompl
Hyderabad (India) � 2012 Incompl, 2014 Postponed
Mumbai (India) - 2015 Postponed
Tana Toraja (Indonesia) - 2001 Incompl, 2014 Incompl
Jakarta (Indonesia) - 2017 Incompl
Marshlands of Mesopotamia (Iraq) - 2015 postponed
Ur (Iraq) - 2015 postponed
Babylon (Iraq) - 2016 Incompl
Arasbaran (Iran) - 2017 Incompl
Jerash (Jordan) � 1985 Def (Boundaries/Man Plan) , 1986 Def, 1995 Ref (Buff zone, festival)
Western Tian Shan (Kazakhstan, Kyrgyzstan, Uzbekistan) - 2015 Incoml
Thimlich Ohniga (Kenya) - 2014 Incompl, 2015 Ref
Zuma de l'Isandra (Madagascar) - 2013 Ref
Northern Marshall Islands Atoll (Marshalls) - 2010 Incompl
Cosala (Mexico) - 2008 Incompl, 2009 Incompl
Centla and Terminos (Mexico) - 2010 Incompl
Orheiul Vechi (Moldova) - 2009 Withdr, 2016 Incoml
Yapese money sites (Palau and Micronesia) � 2010 Incompl
Daurian landscape (Mongolia, Russia) - 2014 Incompl, 2015 Ref
Surame (Nigeria) � 2012 Incompl
Qahlat (Oman) - 2017 Incompl
Harappa (Pakistan) � 1980 Rej, 2008 Incompl (with Mehgarh and Rehman Dheri)
Hiran Minar (Pakistan) � 2011 Incompl
Batanes (Philippines) � 2007 Ref (More info and addit islands)
Kremlins (Russia) - 2011 Incompl, 2012 Ref (AB wanted reject)
Pskov (Russia) - 2017 Incompl
Devil's Town (Serbia) � 2010 Incompl
Mt. Sara (Serbia) - 2008 Incompl
Seruwila (Sri Lanka) � 2008 Incompl
Dongola (Sudan) � 1993 Ref (bigger area needed)
Sanganeb (Sudan) - 2014 Incompl, 2015 Ref
Silk Road (Tajikistan, Turkmenistan, Uzbekistan) - 2014 Ref
Slave and Ivory Route (Tanzania) � 2010 Incompl, 2011 Incompl, 2012 Incompl
Kaeng Krachan (Thailand) - 2015 Ref
Aphrodisias (Turkey) - 2016 Incompl
Alanya (Turkey) - 2010 Incompl
Mardin (Turkey) - 2003 Withdr, 2012 Incompl, 2013 Ref
Badhyz (Turkmenistan) - 2016 Incompl
Nyero (Uganda) - 2015 Ref
Bakhchysarai (Ukraine) - 2014 Incompl, 2015 Incompl
Frank Lloyd (USA) - 1991 Ref (more comparative info required)
Termiz (Uzbekistan) � 2012 Incompl, 2013 Incompl, 2014 Incompl
Bakhrum Mausoleum (Uzbekistan) � 2012 Incompl
Rabati Malik (Uzbekistan) � 2012 Incompl
Sarmisshay (Uzbekistan) � 2012 Incompl, 2013 Incompl
Barotse (Zambia) � 2013 Incompl, 2014 Ref

Update of the list. Sites candidating for 2017 and 2018 are in bold:

M'Banza Congo (Angola) - 2016 Incompl
Ouidah (Benin) - 2001 Incompl
Parati (Brazil) - 2009 Def, 2012 Incompl, 2013 Incompl, 2016 Incompl
Pimachiowin Aki (Canada) - 2013 Def, 2016 Ref
Zakouma (Chad) - 2017 Incompl
Juan Fernandez NP (Chile) � 1995 Ref (Protection concerns)
Chinese Altay (China) - 2015 Incompl
Cienaga de Zapata (Cuba) - 2005 Incompl
Parque del Este (Dominican Rep.) - 2003 Ref (survey program needed etc)
Zaruma (Ecuador) - 2015 Incompl
Jebel Qatrani (Egypt) � 2008 Incompl
Dirre Sheik Hussein (Ethiopia) - 2016 Incompl
Holqa Sof Omar (Ethiopia) - 2016 Incompl
Puys (France) - 2014 Ref, 2016 Ref
Minkebe (Gabon) � 2005 Ref (Better doc, protection + transboundary nom encompassing the Baka community)
Vardzia-Khertvisi (Georgia) - 2001 Postponed
Mole (Ghana) - 2016 Incompl
Majuli (India) - 2006 Ref , 2008 Def , 2012 - Incompl
Hyderabad (India) � 2012 Incompl, 2014 Postponed
Mumbai (India) - 2015 Postponed
Tana Toraja (Indonesia) - 2001 Incompl, 2014 Incompl
Jakarta (Indonesia) - 2017 Incompl
Babylon (Iraq) - 2016 Incompl
Arasbaran (Iran) - 2017 Incompl
Ivrea (Italy) - 2017 Postp
Jerash (Jordan) � 1985 Def (Boundaries/Man Plan) , 1986 Def, 1995 Ref (Buff zone, festival)
Thimlich Ohniga (Kenya) - 2014 Incompl, 2015 Ref
Zuma de l'Isandra (Madagascar) - 2013 Ref
Northern Marshall Islands Atoll (Marshalls) - 2010 Incompl
Cosala (Mexico) - 2008 Incompl, 2009 Incompl
Centla and Terminos (Mexico) - 2010 Incompl
Orheiul Vechi (Moldova) - 2009 Withdr, 2016 Incoml
Yapese money sites (Palau and Micronesia) � 2010 Incompl
Daurian landscape (Mongolia, Russia) - 2014 Incompl, 2015 Ref
Surame (Nigeria) � 2012 Incompl
Qahlat (Oman) - 2017 Incompl
Harappa (Pakistan) � 1980 Rej, 2008 Incompl (with Mehgarh and Rehman Dheri)
Hiran Minar (Pakistan) � 2011 Incompl
Batanes (Philippines) � 2007 Ref (More info and addit islands)
Kremlins (Russia) - 2011 Incompl, 2012 Ref (AB wanted reject)
Pskov (Russia) - 2017 Incompl
Devil's Town (Serbia) � 2010 Incompl
Mt. Sara (Serbia) - 2008 Incompl
Seruwila (Sri Lanka) � 2008 Incompl
Dongola (Sudan) � 1993 Ref (bigger area needed)
Silk Road (Tajikistan, Turkmenistan, Uzbekistan) - 2014 Ref
Slave and Ivory Route (Tanzania) � 2010 Incompl, 2011 Incompl, 2012 Incompl
Kaeng Krachan (Thailand) - 2015 Ref, 2016 Ref
Aphrodisias (Turkey) - 2016 Incompl
Alanya (Turkey) - 2010 Incompl
Mardin (Turkey) - 2003 Withdr, 2012 Incompl, 2013 Ref
Badhyz (Turkmenistan) - 2016 Incompl
Nyero (Uganda) - 2015 Ref
Bakhchysarai (Ukraine) - 2014 Incompl, 2015 Incompl
Frank Lloyd (USA) - 1991 Ref (more comparative info required), 2016 Ref
Termiz (Uzbekistan) � 2012 Incompl, 2013 Incompl, 2014 Incompl
Bakhrum Mausoleum (Uzbekistan) � 2012 Incompl
Rabati Malik (Uzbekistan) � 2012 Incompl
Sarmisshay (Uzbekistan) � 2012 Incompl, 2013 Incompl
Barotse (Zambia) � 2013 Incompl, 2014 Ref

I haven't updated the list for a long time. It might be interesting to look at sites that have been referred, postponed or deemed incomplete and haven't been submitted since.
Submissions for 2025/2026 are in bold.

Bagh-e Babur (Afghanistan) - 2024 Incompl
Murujuga (Australia) - 2024 Inompl
Mahasthan (Bangladesh) - 2018 Incompl
Slave Route (Benin) - 2001 Incompl
Una NP (Bosnia Herzegovina) - 2024 Incompl
Brazilian fortresses (Brazil) - 2022 Incompl
Lake Chad (Chad, Cameroon, Niger, Nigeria) - 2021 Post, 2023 Post, 2024 Post, 2025 Post
Tibesti (Chad) - 2015 Incompl
Zakouma (Chad) - 2017 Incompl, 2021 Incompl
Juan Fernandez NP (Chile) - 1995 Ref
Altai extension (China) - 2015 Incompl
Cienaga de Zapata (Cuba) - 2008 Incompl
Gebel Qatrani (Egypt) - 2008 Incompl, 2019 Incompl
Dirre Sheik Hussein (Ethiopia) - 2016 Incompl, 2020 Incompl
Normandy landing sites (France) - 2019 adj
Tbilisi (Georgia) - 2001 Ref
Vardzia-Khertvisi (Georgia) - 2001 Post
Olymp (Greece) - 2024 Incompl
Majuli (India) - 2006 Ref, 2008 Def, 2013 Incompl
Hyderabad (India) - 2014 Post
Tana Toraja (Indonesia) - 2001 Incompl, 2014 Incompl
Sumatra - modification (Indonesia) - 2026 Incompl
New Julfa Vank (Iran) - 2022 Post
Naqsh-e Rostam (Iran) - 2022 Post
Triple arch of Dan (Israel) - 2006 With, 2008 Ref, 2009 Rej, 2010 Post
Port Royal (Jamaica) - 1988 Rej, 2019 Def, 2024 Incompl
Aqaba (Jordan) - 2024 Incompl
Jerash (Jordan) - 1985 Def, 1986 Def, 1995 Ref
Maasai Mara (Kenya) - 1997 Ref
Mt Kumang (North Korea) - 2021 Incompl, 2023 Post, 2024 Post
Hi Nam No (Laos) - 2024 Incompl
Mulanje (Malawi) - 2014 Def, 2023 Incompl
Manden (Mali) - 2019 Incompl
Northern Marshall atolls (Marshalls) - 2010 Incompl
Cosala (Mexico) - 2008 Incompl, 2009 Incompl
Yapese money (Palau and Micronesia) - 2010 Incompl
Gobi (Mongolia) - 2026 Post
Oke Idanre (Nigeria) - 2010 Incompl
Surame (Nigeria) - 2012 Incompl
Harappa (Pakistan) - 1980 Rej, 2008 Incompl
Mehrgarh (Pakistan) - 2008 Incompl
Rehman Dheri (Pakistan) - 2008 Incompl
Hiran Minar (Pakistan) - 2011 Incompl
Banbhore (Pakistan) - 2020 Incompl, 2021 Incompl, 2023 Incompl
Hisham (Palestine) - 2025 Post
Route of Panama - ext (Panama) - 2019 Def, 2023 Incompl, 2024 Ref
Batanes (Philippines) - 2007 Ref
Mayon (Philippines) - 2026 Incompl
Mantalingahan (Philippines) - 2019 Incompl
Gdansk (Poland) - 1998 Rej, 2007 With, 2020 Incompl, 2021 Adj
Gdynia (Poland) - 2024 Incompl
Bashkir Shikhans (Russia) - 2024 Post
Pereslavl-Zalessky (Russia) - 2023 Post
Gorokhovets (Russia) - 2021 Incompl, 2023 Def, 2025 Incompl
Tanais (Russia) - 2023 Post
Ancient old oases (Saudi Arabia) - 2021 Incompl
Mt Sara (Serbia) - 2008 Incompl
Djavolja Varos (Serbia) - 2010 Incompl
Seruwila (Sri Lanka) - 2008 Incompl
Khuttal (Tajikistan) - 2020 Incompl, 2021 Incompl, 2023 Incompl
Silk Roads (Tajikistan, Kazakhstan, Uzbekistan, Kirgizstan) - 2014 Ref, 2019 Incompl
Pjanjekent (Tajikistan) - 2014 Ref
Central Slave Route (Tanzania) - 2010 Incompl, 2011 Incompl, 2012 Incompl
Alanya (Turkey) - 2010 Incompl
Mardin (Turkey) - 2003 With, 2012 Incompl, 2013 Ref
Badhyz (Turkmenistan) - 2016 Incompl
Nyero (Uganda) - 2015 Ref
Bakhchysarai (Ukraine) - 2014 Incompl, 2015 Incompl
Wadi Wurayah (UAE) - 2024 Post
Termiz (Uzbekistan) - 2012 Incompl, 2013 Incompl, 2014 Incompl, 2026 Incompl
Mir-Sayid Bakhrom (Uzbekistan) - 2012 Inompl
Rabati Malik (Uzbekistan) - 2012 Incompl
Sarmishsay (Uzbekistan) - 2012 Incompl, 2013 Incompl
Zomin (Uzbekistan) - 2026 Incompl
Barotse (Zambia) - 2013 Incompl, 2014 Ref, 2026 Incompl

This one should also be in bold :D it is this year nomination.

Since we now have our first connection for TWHS, maybe it would be of interest to connect TWHS according to their histories.
A special case would be TWHS that were incomplete more than once:

Barotse - 2013, 2026
Sarmishsay - 2012, 2013
Termiz - 2012, 2013, 2014, 2026 (so far champion)
Bakhchysarai - 2014, 2015
Central Slave Route - 2010, 2011, 2012
Khuttal (a WHS) - 2020, 2021, 2023
Gorokhovets - 2021, 2025
Banbhore - 2020, 2021, 2023
Cosala - 2008, 2009
Tana Toraja - 2001, 2014
Dirre Sheikh Houssein - 2016, 2020
Gebel Qatrani - 2008, 2019
Zakouma - 2017, 2021