>>35343738OP here.
I think that for gen 7 we are getting:
At least Popplio of the starters, making bubbles
One Tapu (Koko most likely)
Type Null
Mythicals at least Magearna and Marshadow (maybe not Zeraora because too recent)
Probably not UBs unless they put the beast ball in or they can just appear from a Masterball. In which case Nihilego and Guzzlord for sure (although I would prefer an Ultra World stage
Base form Necrozma
As for regular mons: Rockruff or Ash Lycanroc for sure and Mimikyu if it's not playable.
Bewear.
Hopefully Salandit and Palossand working as a trap.
Pyukumuku could be a great Smash attack extention when hit.
Alolan forms have quite a good shot imo, probably Raichu, Exeggutor, Vulpix and Marowak have the best one.
Great gen to pull stuff from