User blog comment:Stone Roger/Natsu and Zeref have somekind of relation?/@comment-121.45.89.198-20131219121546

natsu may have a memory lost and zeref is the one who's natsu and what he is those two maybe son and dad or brothers from another time line and why are those two are in the time line that both of them are in now and a much more greater evil that fairy tail will have to fight and i think natsu is the last hope of fairy tail time and space and the world by doing that he most kill zeref and regain his memory but who know's maybe when the anime come's back all of us will finally learn everything we have to know. this is just a theory. aka natsu and his team will maybe fight sabertooth again. maybe.