I understand you can't hire a crap load of voice actors, but I really hope the voices are more diverse. Rather than every red guard having the same voice. Which was really trippy when you heard the same guy talking to himself, just to find out it's just 2 different NPC's having a conversation. They don't even really have to be voice actors, get some random employees and have them be a character or two.
They should also put in those random sayings that they had in Morrowind. Like "...and there i was, winking at the honey jar again." or "...I didn't remember using teleportation magic, but then there I was...alone...naked..."
I just miss the diversity in speech. It looks like they did a good job by making the lands quite diverse in the teasers, but I guess we'll see...