Correct me if I'm wrong... trying to sort out where everybody is right now.
Maeve, Caleb: chilling to Pink Floyd at the skyscraper fireworks show
Dolores Dolores: dead/comatose/vegetable with all memories wiped
Charlores: Dubai, big supervillain energy
Lawrence: is he another Dolores copy? I took all those explosives in the van as a hint that he's the one who started the building explosions at the very last shot of the episode
Hanaryo, Clementine: MIA? Working for Charlores now, centered out of Dubai's Delos building.
Musashilores: Got got, I assume he's either dead in a gutter or Clem and Hanaryo dragged his can-opener'd body back to Dubai so Charlores can wipe and re-program him
Marshawn Lynch: RIP, but had one last awesome moment by catching the canister and launching it back
Stubbs: RIP? Bernard said he was gonna patch him up "after I talk to Dolores" but uhhh...
Bernard: In the Sublime?
William: Did not save the fucking world, got got, that's what he gets for beating Jimmi Simpson to death with a fold-up chair, RIP though
Sizemore, Hector, Elsie, Ford, etc.: never ever coming back, apparently.
Solomon & Rehoboam: Gone forever? Boy that cold storage room with all the bodies around Solomon is really gonna stink...
Serac: Dead? Not dead? He said he 'needed help' and we never actually saw him die. Don't know where he went, but I am not gonna count him out... just not sure how he could come back with any meaningful impact.
...
Also, I hope season 4 takes us back to the Westworld park. I want to see what a completely broken down park looks like now, with hosts running amok. We haven't seen any of it this season but at the end of season 2 they hinted that there is still stuff to see...