Fuck. I really want Tim Drake in the game, as he's my all time fav DC character. He's had a few baddass looks to boot too. The biggest problem is that it looks like Nightwing makes his escrima sticks into a bow sometimes. (could be wrong) Since the bo staff is Tim Drakes weapon of choice, it might get redundant.
However, with Tim Drake's awesome inclusion in Arkham City, I'm gonna hold out a bit of hope.