User blog comment:Smoky000/Why Serana cannot be married/@comment-7170985-20130414041848/@comment-71.175.45.118-20130502015333

Bethesda isn't going to release any more DLC's, only the occasional patch to fix some bugs and what not. So while they may or may not throw in the option to marry Serana, they won't add your entire dream journal to the game. Sorry to disappoint.