Well, if it's a Mana game, I'd like the "Good" factor to be around.

For general RPG's though, I think an interesting feature would be rather than having a battle system of sorts, more of a 3rd Person Action thing going for it. Not like a top-down Action RPG, though. Like, RPG elements such as stat raising will help you out and so such, but you still require skill in classic shooting games to progress.