'Downton Abbey': Season 3 character wish list

We're very torn about wanting to see dastardly O'Brien back but liking the sweet O'Brien who came to have great affection for Lady Cora. We think we come down on the side of sweet O'Brien - the character development of O'Brien after the soap incident was one of the best parts of Season 2. We would like to see her continue to be dastardly, but only in trying to do nice things for Lady Cora.