For a while now I have been waiting to see if an ancient vamp corpse from a previous thrall I left in Breezehome would either disappear or remain there indefinitely opening up so many options for starting thrall storage. So I was in Whiterun and decide to drop by breezehome to check on my corpse, when I get inside I find something I didn't expect, the ancient vamp had been reborn and was attacking me, lucky for me I had my 2 volkihar vamps, my super housecarl from markarth and super lydia to take her out. which leads to the endless options we now have for storing various thralls candidates and the question of whether this works on named npcs, or if the arch mage's corpse can be saved for later thralling.
Sorry if this has already been posted