User blog comment:IamJakuhoRaikoben/Chapter 464: Natsu vs Zeref, Review./@comment-86.66.207.25-20151201141528

If Hiro showed the book of END and revealed his identity, we can be sure Natsu will not defeat Zeref and will turn into END, and if Lucy's destiny would be to destroy the spirit of END without destroying Natsu in one word Natsu would gain END's power but stay himself