This game is still on my list of wanted games once my financial situation turns around, and by the looks of it, there will also be a major DLC for it to tease my wallet with.
The DLC is titled The Knife of Dunwall and puts you in control of Daud as he travels down a bloody road to redemption. It will come with new areas, new enemy types, and just because they can a few unique powers for Daud.
Enjoy the trailer on YouTube and start putting your pennies away.