@zeeguy91: It's not that he can't, but changing the core of the character to something completely different sort of necessitates a change to the rogues he has been building. Particularly now if he's a sneaky gunslinger.
Sure he COULD still be fighting the same guys, but I'm willing to hazard a blind guess and assume they're going to shoot for espionage/political thriller stuff instead of super heroics.
Anyway, goes without saying I'm not thrilled at the decision.
Also I'm gonna say that outing Dick is almost as weak as killing Sue Dibny. Out a character that REALLY matters and focus your story on the ramifications of that. I thought the outing of Spider-Man was way compelling, and put him through a whole new set of drama that shook the core of the character and kept him fresh. Reversing that was an awful decision, IMO.
@maddpanda531: I dunno, I just read Issue 1 and didn't think it felt like a "teenaged super hero" story. Robbie felt very adult. He's certainly younger, more prone to fly off the rails, but he also has a maturity to him.
I already like him a lot.
I always loved his design from the minute it was released, but the art was a bit much to swallow. It has since grown on me a bit, and I'm very ready to accept Robbie as an exciting new addition to the mythos.