I've noticed we're missing alot of the "generic" things, which I guess I'll list :P
I miss everyone that went though ;___;
All those ideas you gave are a la magnifique. I really thing that one-stage normal type gimmick is pretty nice.
Maybe a Pokémon whose typing and it's signature move's type change every three turns? That'd be an awesome gimmick for sure.
And sorry for the big dee-lay, I've been busy with stuff so yeah, spare me y'all.