What kind of new dlc can be expected for the game, Skyrim?

Played the game Skyrim to the point that there really nothing else to do, except randomly generating adventures....



I've heard of DLC coming out, but is that just little changes like new items? Or big expansive content like new locations and quests?What kind of new dlc can be expected for the game, Skyrim?
Bethesda has said they wanted to make their Skyrim DLC more like The Shivering Isles and less like the Fallout 3 DLC.



Meaning, high quality expansions well rounded with new land to explore, quests to do, and items to get.



I'm expecting it to have something to do with the Thalmor since you never really get to finish things up with them.What kind of new dlc can be expected for the game, Skyrim?
new lands like on oblivion shivering isles but i saw on a website it said they might allow access into some old regions or summin but maybe i saw it on website but it's believable cause there's a gate with a invisible wall in front of it that u can see morrowind through somewhere on map. So possiblry entry to previous regions