User blog comment:AnimeThoughts/Is Natsu Plain Flat E.N.D?/@comment-122.162.176.16-20151204115757

Maybe when Igneel and E.N.D fought a few hundred years ago, E.N.D was too powerful and Igneel could not defeat him. However, Igneel was able to to seal away E.N.D's powers and memories. in the book leaving behind a young kid with amnesia- Natsu. So if E.N.D is revived from the book, it means that Natsu will gain the memories and powers of E.N.D.