From the official Twitter account for Batman: Arkham City, they are teasing something great and also something that is possibly centered around Harley Quinn.

The photo had no details at all. But the photo obviously is Harley Quinn.

Trophies for the new DLC was released earlier this month: Trophies. Are you psyched for the new Story based DLC, or still need proof before buying it?

harley quinn is definetely one of the best villians created

@htb106 said:

harley quinn is definetely one of the best villians created

agreed

I love how in the comments of their Twitter account, nobody can tell who it is.

@Funrush said:

I love how in the comments of their Twitter account, nobody can tell who it is.

Same with the Facebook account. Everyone kept guessing the hammer brother dudes and one even said Catwoman. Do people not know Harley Quinn when they see her? The hammer is a clear giveaway. When i think hammer, I usually think Harley Quinn or Thor, and since this is a Batman game, who it is should be kinda obvious.

I was hoping for a Deathstroke Dlc but this is good too.

.........so glad I didnt take Arkham City back to Gamestop

Man. I really need to get on to getting Arkham City.