Although the trailer was leaked a little early, the new screens released for Batman Arkham City’s next DLC ‘Harley Quinn’s Revenge’ show more action in the works. 
 
You can check out the latest set of screens, showing more of the DLC that is expected to drop at the end of the month for Xbox 360 and PS3. The video was leaked a few days ago, you can catch a teasing glimpse of Harley out for revenge against Batman as well.