User blog comment:LordLuminous/Theory: The Dragons will die in the Tartarus Arc/@comment-24.90.187.181-20141007173135

Random Theory: Natsu sees igneel die fighting Acnologia. Natsu gets doused in his blood giving him power to defeat Mard and Tartoros but putting him in same path as Acnologia. Leading into Final Fairy Tail Arc where they have to stop natsu from turning into a new acnologia with the help of Zeref and END.