I agree on Galar, especially with how much stuff in that region played off of anime-favoured elements like Meowth and Mr Mime getting new gimmicks and forms.1) neglect of Galar - It's a bit sad that while Galar is the newest region among the generations released, it was so little.
I wanted to meet all the Gallic Pokémon and certain characters, and none of that.
2. May in "Journeys" - it is a pity that in the series, which is so conducive to returns, we were not able to meet her in person. Is it so hard to give her a new VA?
Concerning May, I think Japan treats seiyuus a lot more respectfully than the west treat voice actors, like they're almost on the level of live action stars there, only replacing them if they outright pass away most of the time. Bonnie's VA was replaced on pregnancy leave, but only temporarily, don't know if May's VA applies the same.
I admit I'd be interested in them bringing back the Hoenn performers if Jessie was involved and they by some miracle actually acknowledged her development since then.