Screw the Pokémon world. Let's have a game set in space where you can travel to different planets. Stuff like this is hinted in the Ultra Ruins in USUM. Have it set in an alternate timeline or something, multiverse buggery has been around since ORAS. Or have an entire game set on an alien planet or Ultra World like you see in Ultra Megalopolis. Repeatedly basing regions off existing countries seems uninspired.