Played it through twice. Cinematic masterpiece when it comes to gaming. Loved it!
You are indeed correct. They're saying 2021, so I am guessing in the lead up to Christmas? I know the development for the last one was plagued with crunch time, which usually means the game will suffer as a result. But man-oh-man, Santa Monica Studios got it going on.
Gotham Knights is another I may consider (Batman Arkham series spin off) - but its developed by WB Montreal, who developed probably the worst of the Arkham series games (Origins). Along with Kingdom Hearts 4, but that is probably 27 years off.