With the amount of Kanto shilling in SM and even more coming to USUM (Surge gym replica) i will be surprised if they wont give us Kanto starters at some point

SM had Johto's and Unova ones (beside Alolans of course).

I suppose USUM might have Kanto, Hoenn, Sinnoh and Kalos then.

Wouldnt be surprised if Kanto starters would get exclusive Z-moves (Charizard 2 obviously)