I think we kind of got a realistic version (or close to it) with the Cad Bane that comes with TODO-360. For me at least, it fits in fine with realistic figures.
As for others, I just think there's a lot of opportunities for more aliens to be brought into the mix. I'm about cloned out though and totally burnt out on main characters like Anakin, Obi Wan, Mace, etc.
Bring us NEW stuff that's eye popping, Hasbro. Stuff like Xiro the Hutt would be all kinds of awesome.