User blog comment:EvanDude345rv5/Fairy Tail Chapter 358 Review : Magical Barrier Particles/@comment-121.54.22.98-20131103083600/@comment-5580383-20131103233241

Ultear is likely not going to be a target given she's aged beyond recognition and unless Tartaros has been spying on her, they wouldn't recognize her rapid age change, besides since she can't use magic, she's not a threat to their plans and they would likely not come after her.