User blog comment:Jimeee/Dragonborn coming to PS3 and PC in February/@comment-174.96.27.49-20130122095837/@comment-3428817-20130123172452

The patch has to be released prior to the DLC's release. The purpose of releaseing the patch prior to the DLC's release is so the patch can prep the vanilla game. The patch adds trophies/achievments to the games existing list.