What if the next pokemon game is in a new region, but only has a few new alternate regional variants? As far as new stuff I mean.

This would allow them to world build a lot easier than doing repeating another game and a lot faster than creating a whole new generation of pokemon.

It'd also fit with how Zygarde seems to work, since he seems to be some sort of regional protector distributed to each region.

Doesn't that feel a whole lot better than going back to somewhere you've already explored? Doesn't that sidestep the issue of living up to inflated expectations based on fans of that generation?