Pokopia's fallout.

Although the world of Pokopia is pretty much new and a lot of info is still surfacing, the biggest revelation that we got was that humans left the planet after a several climate changing events, leaving behind a crumbled Pokémon world that's being rebuild as new. I have a few thoughts about this, though are just reflections and can change as time passes:

• To me, this is a "mainline" Pokémon game. Not in the original canon, but in an alternate dimension or even in the future. There are several references from events of Red, Blue, Green and Yellow throughout the game, and the fact that it was released a few days after the re-release of Fire Red and Leaf Green ring a bell that maybe it's not a coincidence.

• This game could be set in the same world as the Ultra Ruin. A dimension that is uncannily similar to this one, where humans fled to space after what was possibly a nuclear (or whatever energy) fallout that changed the planet as we know it, originating or attracting the ultra beast Guzzlord.

Now, considering that it was explicitly a nuclear fallout — which could be very hard, considering that it's Pokémon, and I don't know if this theme would be sensitive for audiences or children —, such events could cause climate disturbances and change the planet, since I would cover the skies and pollute the earth in catastrophic ways. During the Mewtwo event in Pokopia, the legendary Pokémon states that this disaster was caused by "humans being careless with science". Which brings me another though, though this one is much unlikely to me:

• What if the world of Pokopia is the prelude to the world in Mystery Dungeon? Pokémon there know about human existence, but we were long gone from that timeline. A game whose narrative plays around the concept of time travel many times.

That would be the destiny of the world if the protagonist doesn't intervene? Or this is just inevitable?