The Nidoran lines and maybe the Axew line, I think they would fit well in on the Alola islands, plus I really like the Nidos. Dunno if the Axew line would fit in so well tho. Other than those I don't really think there's any other mons I really wanna see on the Alola islands since most of the mons I like are already in the dex. This, why are the pokémon modeled after the sun and moon not native to Alola?
I'd like to see maybe the 'highlights' of the past generations. Pokémon commonly used in battle, fan favorites, ect. Who knows, maybe USUM is Earth in the future XD #MissingNo