Since we are able to bring Serana with us to Solstheim, I was wondering whether or not anyone witnessed her doing any of her "special" interactions she does with the environment all the time. I was creeped out when I watched her perform the black sacrament in Aventus's house and pose in a seizure like rest on the grounds within the Dark Brotherhood Sanctuary. This little girl has some serious issues and I won't be surprised if she finds some new ways to entertain herself in this DLC.

I'm going to avoid using her as a follower. She may be the best, but she leaves to many ash piles behind. That will blow up my save file.

I don't think she does anything special, DLCs usually have nothing to do with each other.

Watch her glitch on one of those levitating pods.