Replying to Skyrim DLC Pack

Has anyone heard anything about this?
Here's a link to things that may be put into the game.
http://www.youtube.com/watch?v=8SE5owAIPmk
Besides from these, I've been reading and from what I've read, there's going to be a bunch of new sick things. I've read that you'll be able to travel OUT OF SKYRIM! You'll be able to go to Hammerfell (To the east of Skyrim Province) and complete a quest line involving a new faction, The Dragon Riders. (This includes Dragon Mounts!!!)
I've also read that you can complete another quest line involving the Thalmor in Cyadiil (Province from Elder Scrolls 4, to the south)

inb4 nerdfag