Rocksteady is to release a final piece of DLC for Batman: Arkham City on May 30th, and it sounds like a whopper.
The pack, released for PSN and Xbox Live and entitled Harley Quinn's Revenge, offers two hours of extra content for the single player campaign, and seems set to conclude those plot-lines left dangling come the game's end (whether the pregnancy test easter egg will also be resolved is unknown).
The DLC sees you interchange between Batman and Robin in what publisher Warner Bros is calling " a new storyline...new environments...all new gang of thugs...as gamers uncover Harley's vengeful plan and shut the gates on the urban mega-prison forever."
No price or size has been announced yet.
But what has been is a Game of the Year edition due September 7th, which bundles all the previous DLC packs, including characters, maps and skins. An announcement trailer can be viewed below.