agree with a lot of what others have already said. if it's holiday 2020, Horizon 2 I think will be ready as the big launch game. Hopefully Sony give Polyphony a kick up the arse and they will have GT7 (with a proper campaign) early 2021. I think there will then be a Japan Studio game and God of War 2 as the big 2021 game.
my less realistic hopes are that Bloodborne 2 has been greenlit and might be in pre-production or early production, and likewise, Fumito Ueda's new game at Gen Design will be a PS5 exclusive and launch year game.