Plot synopsis and some theories

Apparently Gal Gadot/Gisele is returning, so add that to the list of stuff. Maybe the plot revolves around her and it's some rescue mission. I think that's part of why we see Han show up at Deckard's place during the scene of 9's end credits. Han is there to recruit Deckard for the rescue mission to save Gisele. And Han is probably there to recruit him so Deckard could get back at Cipher for using him in 7, while also allowing Deckard to have even more of a redemption arc for trying to kill him (since Han is still alive, so Deckard didn't actually kill him). Maybe Han will give him the offer of "help me save Gisele, and things will be good between us since you tried killing me." It's possible that Cipher and Dante both know where Gisele is, and are maybe keeping her captive somewhere. I have a feeling though Momoa will betray Cipher. Momoa is too big of a name at the moment to keep as a villain and maybe even kill off (well, his character died in Dune, but he was a good guy though in Dune and died a hero).