Although I still haven't found time to play the "Legacy" and "Mark of the Assassin" DLCs, I'm disappointed to hear that an expansion had been planned and was abandoned. I would've loved to have seen one of my Hawkes as a leading figure of the mage rebellion during an Exalted March.
Despite some disappointments (recycled environments, etc.), I enjoyed the majority of Dragon Age II
quite a bit, so I'm eager to hear more about DA3 as development begins.