User blog comment:TW6464/Reckoning DLC Leak. Via REDDIT/@comment-5224682-20130130001209/@comment-5224682-20130130005612

They're both story writers, and as far as I know, they don't interact with the MP team. It's not inconceivable that Thessia may be a destination in the DLC; all DLC thus far has not had a clear-cut place along the story line.