No more warm regions, at least for one Generation. Like it doesn't have to be cold but I don't want it like Alola. I'd like a dad, maybe a brother or a sister who's a gym leader. And since I've accepted that Orre likely won't come back I want one of the following: A hoverbike or a Pokemon that I can ride that hovers, a lab run by the evil team, the ability to blow up one base, or a travel companion.
If we get a travel companion I don't want them to be like Rotom Dex who, in USUM, was a combination of anime Iris, first season Misty, and Max rolled into a Pokedex. This person would be customizable and they have the following uses: dowsing, hint, help option, sidequest menu, bank account (a fun little feature from Gen 2, you decide how much you deposit), heal mid gym, map. They'd probably be kidnapped and have an opinion on you that changes depending on the following factors before they're taken: most responses to them are "..." and you don't talk to them at least three times (they aren't my friend, I just tag along), most responses to them are "..." but you do use their features at least three times before the event (they only need my assistance, we aren't friends), you mostly respond to them but only use their services twice (They're my friend but I'm no use to them), mostly respond and use services at least three times (they're my friend, we help each other out). Then there's the joke one, use each service ten times in a row and always respond to them with something other than "..." (I don't know, they're my friend but kind of weak on their own...just kidding!)