This released today.  I got it so I can probably stream it to the Gamercide channel tonight.  It says it can continue from your previous save of the Knife of Dunwall DLC since it continues Daud's story.  I played a little more freely in KoD if I recall correctly, not being as afraid to kill and not always being completely undetected.  I had completed the main game with no kills or detections, but figured Daud might not be as nice of a person as Corvo.  It will be interesting to see if I can still get a "good" ending though.

Hell, I forgot I bought the last DLC. Need to go back and play it first.