But elder scrolls vampires are not your typical vampires, sure there are similiarities but I sure haven't heard about vampires that live under the ice (The volkihar) except in TES.
Except I didn't really suggest they were typical vampires, I just made a broad statement that, in my opinion, vampires are rarely well done in media. This includes videogames and, more specifically, Skyrim.
Of course, this expansion will be an opportunity for TES to do vampires 'right', but I personally imagine we'll see it overdone. Besides, I don't like the magey vampires of TES; I prefer them to be hunters rather than magicians.