Dragon Age 2 - DLC Witch Hunt Trailer

Game Trailers has an exclusive video showing footage from this new DLC for Dragon Age: Origins. Thanks to vilnii from the Bioware forums in this thread.  And according to Chris Priestly, Bioware has been doing this:

Some might think we have been dropping new DA2 monsters into recent DA:O DLC (Golems & Witch Hunt for example).

Small spoilers in the trailer - so be warned.

Also, thanks to Lord Glenwing in this thread at the Bioware forums.