So I've heard/read that Natsu is END (Etherious Natsu Dragneel), but in the anime END doesn't get activated. In the manga we see that Zeref's reveals who he/it is, but not in the anime.
Is Zeref going to come back and awaken END (Because I'm sticking with the anime, not the manga)? Or is Natsu END even in the anime? (It could just be Hiiro not sticking with the manga?)