Not sure if it's been posted, but
here is a bit more information. Some highlights:
People will apparently now not look as rubbish as they do in every other Bethesda game. When in conversation with you, they'll move, look around, and generally act like real people rather than terrifying, human-skin-wrapped shop window dummies. Races will be more distinct and people will actually show emotion.
Sounds great, if they actually pull it off. (*cough* Radiant AI *cough*)
NPC relationships now extend to inheritence. If you kill a shopkeeper for instance, his daughter may take over the business, and give you a whole boatload of aggro next time you go in there.
You killed my father, prepare to die!
Fallout 3-style perks also come with level-ups.
Perks? Okay, that'll be interesting.
There are five full-sized cities.
Wonderful. Oblivion had nine (and that's including Kvatch). They just cut that in half.
Level-scaling is back, but is apparently closer to that used in Fallout 3 than the stuff we saw in Oblivion.
Dunno about FO3 scaling, but interesting. Hopefully it's better than that weird system they had in Oblivion.
Oh yes, and more famous actors doing voices, one of which is in the form of Max von Sydow as your "mentor". 100% chance of death in the first quarter of the game, calling it here. They already did it with Patrick Stewart. Maybe they'll learn and actually have him stick around a bit more than just the tutorial. But come on, "mentor" just screams that he won't make it through the tutorial.
My expectations remain low, however. The skill changes (simplifying) aren't looking good. Bethsoft in general just doesn't have that great of a track record these days.