If they don't do this, I may just have to make it myself one day, because I love it. I'm probably a bit biased, as a southerner planning to move to Minnesota.

The first DLC is a wild area based on Mexico (and/or maybe the Caribbean) with lots of references to Paldea.
The second DLC is a wild area based on Canada (Probably around the Great Lakes and Niagara Falls) with lots of references to Kalos.

Victory Road is the source of the river and the Pokémon League is based on Lake Itasca.

You start in New Orleans and make your way up the river to end in a town based on the Twin Cities, which, like Opelucid in Unova, is different depending on what version you have. (So you're basically choosing between Minneapolis Version or Saint Paul Version.)

And so, for your consideration, I present the Twain Region. Based on the Mississippi River, which is here called the Twain River because it runs right down the middle and splits the region in twain. And obviously, the professor must resemble Mark Twain.

But then I had a better idea:
¿Por qué no los dos?
Forget open world, they clearly aren't ready for it yet. No, the best option is to return to a linear structure with occasional wild areas, like Galar.

Go download a bunch of GB studio .pocket games on itch.

No, I'm fairly sure that's correct. Every pronunciation guide I can find for that word says it's like pyüs . That's also how it's pronounced in Monsters Inc. which is the only time I've heard it said. Regardless, I would say either pronunciation rhymes with goose.