Many Alolan forms, including Flying/Fighting-type Farfetch'd and Grass/Dark Vileplume.

New Grass-type pokemon based on a tulip, another based on a rocking chair that's Ghost-type, another based on a flamingo that's Fire-type.

Kukui is revealed to be an ex-Team Flare grunt that reformed himself. There is a Dark-type Kahuna. Your mom is revealed to have been a gym leader in Kalos when she was younger.

Megas are back but no new ones. There's a Hoopa Hole end game quest that lets you find the stones around the islands.

Wimpod doesn't evolve. The Dancer birds don't evolve. Cutiefly has two evolutions, one is Bug/Fairy and has Healer, the other is Bug/Poison and has Poison Touch.

Starter evos are real. Owl has high Speed and Attack. Tiger has high Sp.Atk and Def. Mermaid has high HP and Sp.Def.