This Add-on, "Darkspawn Chronicles" extends the life of "Dragon Age: Origins," the dark fantasy epic that has you playing as a Grey Warden, one of the last of a legendary order of guardians. With the return of mankind's ancient foe and the kingdom engulfed in civil war, you have been chosen by fate to unite the shattered lands and slay the archdemon once and for all.

The description suggests that the content will be a new quest that occurs after the conclusion of the original game. It is likely that this content will also be coming to the PC and PS3 versions of the game, whatever it might be.