Hopewell Ceremonial Earthworks (USA)

"After a lengthy application process, Aultman said, she hopes for a decision by 2023."

https://www.dispatch.com/news/20190729/hopewell-earthworks-next-up-on-world-heritage-list


"The text of the application will be reported on January 31, 2022; the entire text of the application and protection management plan will be completed in June 2021, including all 14 nomination points. The text of the application for the September issue will be sent to the World Heritage Centre for pre-trial; so the preparation for the relevant application will begin next year. It can be said that time is very tight and there is almost no chance to breathe."

http://www.greenchina.tv/news-36064.xhtml

Eise Eisinga Planetarium (Netherlands)

"We want to offer it in UNESCO in 2022, then a committee will bend over it and a year and a half"

https://www.omropfryslan.nl/nijs/917507-finansjes-run-planetarium-fan-eise-eisinga-wurdt-foardroegen-unesco

2023 WHC Nominations: 2

- Eise Eisinga Planetarium (Netherlands)
- Hopewell Ceremonial Earthworks (United States)

Minoan Palatial Centres (Greece)

"The Archaeological Service cannot complete the necessary file for another 18 months, at least." This quote indicates a dossier may be completed in mid-2021, which then could be officially submitted by February 1st, 2022.

https://www.argophilia.com/news/cretes-minoan-centers-a-step-closer-to-becoming-unesco-world-heritage-sites/224460/

Flow Country (UK) seems probable for 2023 based on this report. Two years from January 2020 would mean the official submission timetable is January 2022, which would mean a formal evaluation and decision by the world heritage committee in 2023.

"The Department for Digital, Culture, Media and Sport will assess our technical evaluation in mid-January, before deciding whether or not we can proceed to stage two which involves a full nomination document going to Unesco [the United Nations Educational, Scientific and Cultural Organization] in 18 to 24 months' time."

https://www.johnogroat-journal.co.uk/news/another-step-forward-for-flow-country-world-heritage-bid-188699/

Wanuskewin (Canada)

"Right now, the park has a goal of earning the UNESCO designation by 2022, . . . it may be pushed back to 2023 because those in charge of the submission want to submit a quality application for the designation."

Based on this report, 2023 seems more likely than 2022.

https://www.cbc.ca/news/canada/saskatoon/bison-return-wanuskewin-1.5431934

Vietnam - Yen Tu

First Vietnamese inter-provincial nomination so need more time to draft dossier but expected to finish in 2022 for WHC2023

https://thanhtra.com.vn/xa-hoi/van-hoa/khi-nao-danh-thang-yen-tu-se-duoc-cong-nhan-di-san-the-gioi-169595.html

Hin Nam No National Protected Area (Laos)

As an extension to Phong Nha-Ke Bang National Park (Vietnam).

https://www.thestar.com.my/aseanplus/aseanplus-news/2020/08/22/laos039-hin-nam-no-to-gain-world-heritage-site-status-by-2022

Anticosti Island (Canada) - further confirmation, this seems like the priority nomination for 2023.

https://macotenord.com/anticosti-a-complete-un-dossier-beton-pour-une-reconnaissance-de-lunesco/

WHC 2023

- Anticosti Island (Canada)
- Minoan Palatial Centres (Greece)
- Sado Gold and Silver Mine (Japan)*
- Hin Nam No National Protected Area (Laos)
- Eise Eisinga Planetarium (Netherlands)
- Daegokcheon Stream Petroglyphs (Republic of Korea)*
- Flow Country (UK)
- Hopewell Ceremonial Earthworks (USA)
- The Complex of Yen Tu Monuments and Landscape (Vietnam)

*Japan's nomination is not official yet, but Sado is the most advanced nomination and was originally aiming for 2022. Hikone-jo and Asuka-Fujiwara are aiming for 2024.

*Korea's nomination is not official yet, but Ulsan has been preparing for years and it's certainly at an advanced stage in its nomination. The only potential nomination that could take precedence is "Hanyangdoseong, Seoul City Wall", but mostly silence in Korean media about any upcoming re-nomination after its rejection indicates its likely not happening soon (though both remain on the priority list).

Royal Belum State Park (Malaysia) - Based on this article 2023 (not 2021).

"Royal Park Tropical Rainforest will be listed as a World Heritage Site in 2023 at the earliest and become Malaysia's fifth World Heritage Site."

https://www.orientaldaily.com.my/news/north/2020/10/01/366813

The river Tiber (Tevere, Italy)

Made public on the 24/9/20.

Actually not the whole river (though this would be majestic), but a portion in Lazio, they say from Farfa through Rome and till the sea. Not clear how much this would overlap with the historical centre of Rome, but it goes beyond that: they mention the bridges, Milvio and Sisto, the Tiber Island, imperial docks, naval dockyards from Testaccio to Marconi, the Cloaca Maxima (visitable by foot), down to Portus and ancient Ostia (wonderful archaeological site near the sea). It feels somewhat undefined, but still an autoinclude, principally because of Ostia, in my opinion.

They say they just started preparing the candidature and think that everything will be ready/will finish in three years (so not clear, tentative or definitive?), so I'm counting this as 2023.

Trivia: the 4th of October was the Tevere Day.

https://roma.corriere.it/notizie/cronaca/20_settembre_24/roma-tevere-patrimonio-dell-umanita-avviato-l-iter-la-candidatura-3bb6d5d2-fe66-11ea-a30b-35e0d3e9db56.shtml

The Historical Port City of Izmir (Turkey), as stated in this article: http://www.aliagaekspres.com.tr/kultur-sanat/19/01/2021/izmir-unescoya-hazirlaniyor. But I think it is not confirmed yet.