User blog comment:IamJakuhoRaikoben/Chapter 474: In the Moment of Complete Silence, Review./@comment-4449950-20160222214714/@comment-5303512-20160223150623

@Bato I am confident that if there was a way to change Ultear back to normal then Jellal and Meredy would have done so before the start of the Tartarus Arc. judging from the days that Last Ages was cast and from when they received the letter, she was aging faster but at a most steady pace. She would have been dead long before, Tartarus Arc started, it is most likely that she merged with the Timeline just as Ur became one with the Ice.