While not yet officially announced by Warner Bros., a number of PS3 trophies have turned up indicating that more DLC is en route to Batman: Arkham City. Judging from the trophy descriptions, the DLC appears to be story-based, which would make a nice break from the previous challenge room add-ons.
Batman's trusty sidekick Robin, who made a cameo appearance during Arkham City's main campaign, will be playable in the DLC[...]
Continue reading: Batman: Arkham City Getting Story-Based DLC, Stars Harley Quinn And Robin...