User blog comment:IamJakuhoRaikoben/Chapter 394: Juvia vs. Keith, Review./@comment-4449950-20140725143712/@comment-24800928-20140725184715

another reason jellal can't die (other than the usuall Jerza forever) is because Meredy won't have anyone left. She has no family or friends because of Ultear, and now Ultear is gone. If Jellal dies, then what? Juvia can't fill in, not unless Meredy joins Fairy Tail, and even then that just isn't the same.