>>33156989The Alola Pokedex is really light on Johto Pokemon (and, to be fair - all other non-Kanto regions), leaving lots that could be added to USM.
I personally don't think there'll be new Alolan formes because the games would be incompatible with SM and add another layer of inconsistencies in Pokemon Bank, but there are a lot of Pokemon that could get them.
Here are all the Johto lines not in the Alola Dex. If Smoochum and Tyrogue were to get Alolan formes their evolutions would have to too, and if anything with a pre-evolution (Bellossom, Kingdra, Mantine etc.) were to get one their pre-evolutions would probably need to as well, because Gloom can validly evolve into regular Bellossom in Alola.
