I guess I'll throw my guesses too:
Returnal in January (based on finalized retail box art leaking on Amazon back in September I have been speculating that it is a late delay from launch lineup, so January)
Destruction AllStars in February (confirmed)
Ratchet & Clank: Rift Apart in March (announced as "launch window" which i am guessing means by March)
GT7 in May
Horizon Forbidden West in July/August
The Last of Us Factions in September
God of War Ragnarok in November (unless if delayed, which can totally happen)
If they get all this out in 2021 then holy shit!
That said...we would get a huge drought of games in 2022 since most Sony WW studios had released something in 2021 and 2020. Unless most of these studios have now 2 teams.