9. Playable Robin & Nightwing
In Harley Quinns Revenge - the story-based DLC for Arkham City - we finally got to play as the Boy Wonder himself, Robin. And in the Nightwing bundle, you got to play the Challenge maps as - you guessed it - Nightwing. So we can gather that the Arkham City sequel will surely have these characters playing some role in its events. Why go through all that time programming and designing entire character models and individual move sets if you arent going to use them again? In Arkham Unhinged - the comic book series based on events in Arkham City - Nightwing is shown as being in Gotham City the entire time. This makes it even more likely that he will be available as a playable character at some point in the game. How great would that be? Being able to travel around Gotham, not only as the Dark Knight, but as some of the other members of the Bat family? In the prequel, though, it could be the case that Dick Grayson hasnt become Nightwing yet. He might not even be Robin yet.