-There are no new Alola forms
-Own Tempo Rockruff/Dusk Lycanroc is breedable, so you can get as many as you want with whatever Egg Moves that you want. Own Tempo Rockruff is incapable of evolving into Midday or Midnight Lycanrock.
-Necrozma gets a 3rd new form called Ultra Necozma that is Psychic/Dragon with stats higher than Arceus. It basicially a fusion of Z-moves and Mega Evolution, in that it's usable via making Dusk Mane or Dawn Wing Necrozma use an exclusive Z-crystal that lets you transform similar to a Mega and THEN the next turn can be used to change Photon Geyser into the Z-Move "Light that Burns the Sky". It has the exclusive Ability Neuroforce, which increases the power of Super-Effective moves
-There are 4 new Ultra Beasts total, on top of the 3 revealed there is one that evolves from UB Adhesive that is Poison/Dragon when it learns Dragon Pulse(only obtainable on it via move relearner or move tutor). UB Adhesive is also obtainable before the post game, but barely.
-There is a new Mythical, a pure electric that looks like it was ripped straight from someone's fur affinity. It's ability is Volt Absorb and it has the exclusive new move Plasma Fists, which after hitting the target turns all of their normal type moves into electric type ones for the next turn.
-All ORAS tutors are back, and on top of that there are 5 new ones: Defog, Liquidation, Stomping Tantrum, Throat Chop, and Laser Focus
-You can win a Surf Pikachu via getting a high score in the Mantine Surf minigame. This Surf Pikachu is not shiny locked.
-There is a method to get Pikachu, Exeggcute, and Cubone to evolve into their original kanto evolutions in this game(Most likely so they can be VGC legal). You use their normal Evolution triggers(Thunder Stone, Leaf Stone, and level 28 respectively) while in a Ultra Wormhole location)
-The Ultra Beasts and Ultra Wormole Legendaries from past gens are not Shiny locked, but the Tapus, Cosmog Line, Necrozma, and Zygarde still are.
-Speaking of Zygarde, rather than having to collect all 100 Cells, there is instead a 50% Zygarde is Resolution Cave(On Poni Island), and a 10% Zygarde as a gift. When you get the Zygarde Cube, it has the remaining 40 cells in it already.
-Outside of previously mentioned Z-Crystal that creates Ultra Necrozma, the only new Z-move that hasn't already been fully revealed is the one for Mimikyu that was only partially seen, which transforms Play Rough into "Let's Snuggle Forever!"
-Outside of Photon Geyser for Necrozma, Mind Blown for UB Burst, and the previously mentioned Plasma Fists, there are no other new attacks
-Ultra Necrozma's Neuroforce is the only new Ability.