User blog comment:Jimeee/Bethesda tweets mysterious teaser picture.../@comment-4321464-20121105043440/@comment-193.242.122.5-20121105094332

Well Todd Howard said that they where going to make at least the same amount of DLC's as in Fallout New Vegas but BIGGER.

So I think that Heartfire can't really count on the BIG DLC list. Same as the Horse Armor one in Oblivion.