Don't know if I'm alone here.... But I really want a regional bug that is Bug/Ice (x4 rock and Fire weaknesses be dang-ed).All of the rumors it was in turned out to be fake, so probably not going to happen.
I think our regional bug is going to be a wart biter (a kind of katydid found in the UK).
If they ever bring back regional variants I could see a water type Ponyta based on a Kelpie.Given we're in a region based on the UK, I'd love to see an Irish elk and some Pokemon based on mythological creatures from Celtic mythology (kelpie, dullahan, puca, banshee, any of the fair folk, etc.).
Also a griffin, because I'm shocked that hasn't been done yet.
But I'm sure those have all been heavily suggested at this point. I also don't expect the region to be filled with Pokemon based on typical UK animals or myths given past regions based on real-world locations haven't exactly been filled with Pokemon based on native species (there have been some, but not a huge amount).
I would love to see more Pokemon that are based off of weapons, like Haxorus and Aegislash.