Have you looked at Annexes I and II of
this document??
They list all "Upstream Process Requests" received in 2020 and up to 31 Mar 2021. I note that 7 of them (6 + 1) are not related to a specific T List site but are at "Country Level" for T List "Revision" or "Development". The ones which are "site specific" relate to help in preparing a "Nomination" include sites not included in your list. Is that because you "know" from elsewhere that they were not pursued.... or should they be "recognised"??
Eg
Belarus - Kalozha Church of Sts. Boris and Gleb in Grodno
China - Beijing Central Axis
I note there is also a "problem" in that some "Upstream requests" relate to sites which are not yet on the T List (Kazan was in that Category when the request was made but was subsequently added).
E.g
Serbia - "Archeological site Belo brdo in VinÄa".
Belgium - "Public zoological gardens in the 19th century - a new typology in a rapidly changing world"
I guess we just ignore these???