Nightwing and Robin rumored to be featured in the new Batman: Arkham City Story DLC.
A list of PlayStation 3 trophies seems to out the existence of new story-based DLC for Batman: Arkham City.
PS3 Trophies Website lists 10 new trophies for a Harley Quinn DLC that appears to be story-based as opposed to more challenge rooms.
No crimefighter should be without this
Breaking and Entering
Find a way into the secret base
How’s It Hanging?
Clean up the Dry Docks
The Last Laugh
The joke’s on who?
Zip Kick 3 different thugs
Shield Bash 5 different thugs
Snap To It
Snap Flash an unarmed thug, an armed thug, an environmental object and a Titan
Defuse all bombs in 3 minutes or less
A Few New Tricks
Use 5 different Quickfire gadgets in one fight as Robin in Harley Quinn’s Revenge
Destroy all Harley Balloons