Dragonborn is the third official add-on for Skyrim, after Hearthfire and Dawnguard, and it sends you in a north-easterly direction to the island of Solstheim where adventure awaits in the form of seven main quests, 30 side quests and 70 new locations. If the rumours are true, you may even find another dragon-blood waiting for you.
The add-on also includes new shouts and a dragon-riding ability, meaning you can now climb on top of a gigantic, winged, fire-breathing reptile and fly about the land yelling at people so loudly that they die. If that's not the definition of anti-social behaviour, I don't know what is.
If you haven't yet had a chance to watch it, here's the trailer: