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I still really wonder whether we'll get any of those at all. On the one hand, in a Kalos game featuring the bold return of Mega Evolution, it makes sense to focus all effort on those and make any and all new Pokémon forms Megas. On the other, Game Freak has rarely passed up on the opportunity to create entirely new 'mons for the dex either (they once denied ILCA that opportunity, but this game is their own work). I mean, even LGPE saw the debut of Meltan and Melmetal (and in a lesser example, Bonsly technically debuted in XD). And there are plenty of Pokémon that could do well with a snazzy new Kalosian form, maybe even a regional evolution if they're feeling generous.