I actually theorize that Diamond City is part of Metro Kingdom and Kitchen Island is close to Luncheon Kingdom.It would have been cool if towards the end of the game you go to either Diamond City or Kitchen Island and you gotta contend with him for moons or something.
Aye @TheEnderDwonk and welcome to WarioForums where the gold is good and the garlic is better, have a rotten stay! Wahaha!
I didn't think about that, now that I am that actually sounds like a really neat ideaFirst off, welcome to the forums my friend
And second off,
I think the best roles Wario can have Odyssey is probably either as a boss character. (Bowser pays Wario to stop Mario?)
Or he can be a location of a moon and you have to pay him a hefty amount of coins to get it