More Arkham City DLC on the way?

More Batman: Arkham City content looks to be one the way shortly, as PS3 Trophies has uncovered 10 new trophies for a ‘Harley Quinn DLC pack’.

Interestingly, this doesn’t look to simply be a new character for the game’s combat challenges. The list of trophies includes some vague descriptions that don’t match up with the usual “clear all gold missions”-type requirements seen in other character DLC.

Instead there are trophies that suggest a new mini-campaign is incoming, like “Find a way into the secret base” and “Clean up the dry docks”.

No date or price was attached to the listing.

Could this mean we get answers to the many questions coming out of the ending?