Updated Tue, Feb 21, 2012 by Martuk
In the new DLC, Day plays the elven assassin character of Tallis that she created for the web series. Tallis will join forces with players in the new pack to infiltrate the Orlesian estate to steal a precious relic.
Additional details about the new DLC will be revealed on September 18th with a targeted release date set for October 11th, which according to Day in a recent interview is when Dragon Age Redemption will also debut. In the meantime, check out the Mark of the Assassin trailer.
Source: Dragon Age II website