User blog comment:Blood Reaper/Pete Hines tries to get more info on the Skyrim DLC release date/@comment-4772788-20120429183816

things known about DLC: 1) It wont be dragons (the entire game is based around dragons so there is a 0% chance of dragon DLC)

2) It wont be stormcloaks or Imperial related (for most of us one of the two groups are dead)

3) it wont be Shegorath (shivering isles dlc in oblivion)

4) it wont be multiplayer (this is obvious)

5) it wont be Mehrune Dagon (the oblivion story)

6) it will not be werewolf (the lythrocampy is barely present in game and is a part of companion story line)

thats what I am sure of atm