More conspiracies, definetly, I would love to plot against the king, or that lord who just doesn't want to be friends.
I loved being able to find out who hates who, or who might be tempted to defect in warband.
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More emphasis on the difference between good and evil, I want the people to react if I'm known for pillaging villages and treating people unfairly, being praised for saving villages and being an overall good samaritan would be very welcome as well.
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I don't know about the rest of the people, but I always thought companions were bland, they don't really have a sense of personality in my eyes, more player-companion interaction would be lovely.
and finally;
MORE quests.