The PlayStation Blog has advised details regarding the upcoming DLC for Fat Princess. Ironically, you don’t long to wait as this DLC will be landing tomorrow, January 18th.
What you can expect from the DLC is:
Arena Mode unlocks once you have defeated Zug in campaign play; you can then compete in the Castle Arena against endless hordes of enemies. Play through the campaign and reach the Swamp, and then you can compete against your friends in the Temple Arena. These two new arenas pair players together against an onslaught of enemies that will put your survival skills to the test.
For more details regarding this DLC you can check out the full blog here.