Robin sighted in Batman (Batman: Arkham City, that is)

The caped crusader’s teenaged pal Robin has been sighted as a limited edition, pre-order exclusive character for Batman: Arkham City at Best Buy.
Details are pretty limited too, aside from the fact that this offer exists and can be read at the US retailer’s site. Chances are, it’ll be like the exclusive Joker character from Arkham Asylum would could be used on certain challenge maps. But that’s not confirmed.
Batman: Arkham Asylum is due for an October release on PS3, Xbox 360 and PC. Read the IncGamers E3 2011 preview of the game, here. I’m glad I decided to leave the “best of all it doesn’t have Robin in it” sentence out of that one.
Source: Best Buy