I think the PS Studios presence will be Fairgame$, Ghost of Yotei (with release date), Days Gone Remastered and GoW 2018 Remastered.
On the 3rd party side of things my predictions are: @Grumblevolcano I don't see SE using State of Plays anymore. It really does feel like that relationship is quite bad right now.
I can see Square having a huge presence at Nintendo events. Sega and Capcom yes I can definitely see a presence. Microsoft too.
I think Marathon may have something but Bungie usually has its own thing. Uhm, my expectations @breakneck I still expect Square at Sony events.
I don't think their relationship is bad; Square is just going to do what they should always have done, and that is to make everything multiplatform.