User blog comment:IamJakuhoRaikoben/Chapter 451: Fairy Heart, Review./@comment-24277053-20150907130949/@comment-77.194.131.51-20150907131903

Prelude To The Final Battle doesn't mean it's the end of the manga, the final battle against Zeref and maybe Acnologia, maybe there will be other events after. if you read about the norse mythology text about Ragnarok ( the term used by Zeref for the dragon king festival ), there is something after Ragnarok, so maybe Hiro follows that