User blog comment:IamJakuhoRaikoben/Chapter 438: The Seventh Guild Master, Review./@comment-24039234-20150601171314/@comment-7418318-20150603194517

Speaking of Mira, Take-Over and endgame I just thought of an interesting situation for the end of Fairy Tail.

Mira could Take-Over E.N.D., turning Natsu into a normal Human (or as normal as a Dragon Slayer can get anyway).

This power could then have a variety of interesting effects on her, both physically and psychically. She might even kill Zeref and become the "final boss" of the series... now wouldn't that be qutie the irony.