If it's Hawaii I expect a sea turtle starter
Edit:
What I would expect for Hawaii
Fire pig
Sea turtle
Grass bird
I know we have a tendency to repeat Pokémon a LOT, but I think Tepig is crying right now.
I guess they could hand out the Unova starters as a bonus early on the way they did with Kanto starters in Kalos, though.
The species all make enough sense for it, and Unova and Hawaii-5-o are technically in the same country.
This better be a thing actually.. Especially since surf was originally a surfboard in Red and blue. Also, Dolphin finally?
I just hope they add more Water types or aquatic animal inspired Pokémon in general this time if we're getting an island region.
I know everyone hates them, but it's where most of the cool ideas are left.
Also Dive Zones please.
And that Surfing Pikachu everyone talks about.
And tropical clothes options.
If we're taking a vacation, I want to be pampered.