Via Francigena in Italy could be submitted for 2021, but its not exactly clear from this article.

https://www.vaticannews.va/fr/monde/news/2019-08/la-via-francigena-candidate-pour-le-patrimoine-mondial-de-l-unes.html


https://elevenmyanmar.com/news/mrauk-u-region-nomination-draft-for-world-heritage-site-to-be-submitted-in-september

It will be interesting to see what UNESCO/ICOMOS make of this nomination if it is put forward for 2021.
We were due to visit it during our last visit to Myanmar in 2012 but were prevented from doing so when the Rohingya issue blew up and the Myanmar government stopped tourists going there for a while.

The current stance of the Myanmar government is that everything is "peaceful" and "normal" with tourism encouraged but the reality seems to be that the temples are located in an area of 3-way instability between the Myanmar government and -
a. The Muslim Rohingya people - there is still the "unsolved" problem of the Rohingya expulsions/emigrations/"genocide" which has happened since 2012 (mainly 2016) leaving some 600k Rohingya muslims in camps within Bangladesh. Myanmar "may" have committed to facilitating the return of some of these but this isn't happening for various reasons. Some Rohingya have stayed within the borders of Myanmar and are fighting as the "Arakan Rohingya Salvation Army" (ARSA)
b. The insurgency of the Buddhist "Arakan Army" (AA) pushing for greater autonomy (or more) within Myanmar.

This seems to present 2 issues to UNESCO/ICOMOS
a. Is the area safe enough for an assessment mission to take place? And even if it is could such a mission conclude that the heritage itself is "safe"?
b. Can a nomination be accepted when many of the local people claim to have had their rights removed or threatened - Thailand recently failed to demonstrate the support of Karens when proposing KKFC.

Here are few recent links
a. March 2019 - "Armed conflict at Mrauk-U damages temples and displaces villagers"
b. March 2019 - "Eight injured in Mrauk U violence"
c. April 2019 "Myanmar rebels storm police base in Rakhine state amid fresh clashes in temple town"

Nepal's Tilaurakot in Kapilvastu
https://english.onlinekhabar.com/nepal-to-propose-adding-three-more-sites-to-world-heritage-list.html

Sharjah for 2021, with what looks like a revised nomination of 'Sharjah: the Gate to Trucial States':
https://www.gulftoday.ae/news/2019/10/05/sharjah-archaeological-body-holds-meeting

Unfortunately Chiang Mai has to be delay further after get many comments from Unesco on nomination dossier. Now it is possible that Thai Government will pick Wat Mahathat, Nakhon Si Thammarat to submit before this 1 Feb 2020 deadline.

https://www.banmuang.co.th/mobile/news/region/169087

Technical Evaluation Mission Carried Out to "Getbol, Korean Tidal Flat"

http://english.cha.go.kr/cop/bbs/selectBoardArticle.do?nttId=75374&bbsId=BBSMSTR_1200&mn=EN_01_01

India goes for Sacred Ensembles of the Hoysala?
https://www.thehindu.com/news/national/karnataka/karnataka-to-seek-unesco-world-heritage-site-status-for-14-hoysala-temples/article29939199.ece

Myanmar Submits Draft of Mrauk-U World Heritage Bid to UNESCO

If there were peace, I am sure Mrauk-U would be recognized by UNESCO, as our cultural heritage meets the selection criteria but with the fighting, it can't become a World Heritage Site ——Daw Khin Than, chairwoman of the Mrauk-U Heritage Trust

https://www.irrawaddy.com/news/burma/myanmar-submits-draft-mrauk-u-world-heritage-bid-unesco.html

Italy will have the Porticoes of Bologna for 2021: http://www.bolognatoday.it/cronaca/Portici-unesco-bologna.html

This supposedly will be a transnational site, together with Sweden
https://www.forbes.com/sites/davidnikel/2019/09/17/denmark-to-rebuild-viking-ring-fortress/#41d1a99d1dd0
Sweden doesn't have a Ring Fortress on its T List however.
So unlikely they will make it before the Feb 1, 2020 cut.

Djerba seems to be on track for 2021: https://www.leconomistemaghrebin.com/2019/09/09/djerba-patrimoine-mondial/