I think I've already said in another thread some time ago that I'm not so sure about this. Skyrim is an ARPG, a different type of game. Overhyped, I might add. It didn't have any competition, too. And mods pull half of the weight (if not more) of its popularity.
CRPG and open world kind of doesn't go together. It's prone to creating very unbalanced gameplay, losing most of the tactical aspect. Can remedy "pulling" (but I doubt it will), but will possibly introduce MMORPGy grinding and "twenty bear asses quests". Also, one has to fill the world somehow. DAO didn't have to, it was linear tac-crawler, but DA2 managed to totally suck at that - Sundermount was as interesting as climbing Mount Chilliad in GTA IV. And Skyrim for the most part is quite like that, too - empty. One could very well not have any story at all and player could wander around anyway.
Elder Scrolls pulls off a game where you make a character you get dropped in a world, and if feels more like your a person in a world.
I loved Dragon Age / Dragon Age Origins even though the plot and direction you go is very linear / sequential, you follow a structured story from point a -> b -> c -> d
Didn't like DAII.
Curious to what elements they exactly pull from skyrm,