Update 8:15 a.m.: Rocksteady's community manager has issued an updated tweet correcting the previous date; the Harley Quinn DLC will launch on May 29 (PSN) and May 30 (XBL) alongside the Game of the Year edition.

Original Story: Warner Bros and Rocksteady Studios confirmed not one but two rumors today, with the announcement of both a Game of the Year edition and another pack of upcoming downloadable content for Batman: Arkham City. The newly announced Harley Quinn DLC is coming soon, and if you were patient enough to wait for Batman this long, waiting some more for the GOTY edition will get you that content (and loads of other goodies) included.

First, as suspected, the game is getting the "Harley Quinn's Revenge" pack. Harley sports a new look in this "final chapter" to the game, which presumably means it takes place after the events of the game. It features new story content and the ability to play as both Batman and Robin. It will be available to download on April 30, says a tweet from a Rocksteady community manager.

If you'd rather wait another month to get all of your Batmans in one place, the "Game of the Year" edition is coming May 29. It includes the game and the Harley Quinn DLC, along with all of the previous packs: Catwoman, Nightwing, Robin, Challenge Map Pack, and Arkham City Skins Pack. Plus, if you're in the US or Canada, you'll get a download code for the movie Batman: Year One. That's quite a bit of Batman all in one place, so if you've managed to hold off this long, there's really no reason not to wait a little longer.