It looks like Batman: Arkham City may soon get some new DLC, if an updated PlayStation 3 Trophies list is any indicator. The website PS3Trophies.org uncovered a list of ten new Trophies for Batman: Arkham City that focus on Harley Quinn and even Robin. The Harley Quinn Trophies seem to be a part of a story, potentially like Catwoman's DLC, but also has some for performing certain tasks, like shield bashing. There is a Robin trophy that unlocks after the Boy Wonder uses five quickfire gadgets, which could point to him being a playable character in the Harley DLC. Where exactly Harley Quinn's DLC fits into the Batman: Arkham City story is unknown, as is an official confirmation from Rocksteady, but at least it looks like more content will be on the way.