Obviously, when the Avadra Kedavra curse backfires and Voldemort is blasted out of his initial being, there would be some sort of effect on those branded with his mark. Because of the (I would assume) violence with which he is jolted from the corporal realm, what effect would it have on his followers? Do you think the marks simply "went out" or do you think there would be some level of pain, like Harry experiences from time to time with his scar?