http://forums.bethsoft.com/index.php?/topic/1207390-skyrim-fan-interview/
So, it appears you can get married (I hope this is handled better than in, say, Fable.
They have reduced the number of parts in a complete set of armour.
And they refuse to confirm whether we can vampire/werewold/etc.
(And a bunch of other things, though not really much of interest/new).