User blog comment:FairyRaven/Fairy Tail Chapter 470: Hybrid Theory, Review and Commentary/@comment-77.194.131.221-20160127085710

i really don't understand what Mashima wants to do with this arc, the S12 are far more powerful than Fairy tail members, Natsu is out, Acnologia killed a Sprigan, i really don't understand.

The only theory i have in mind is Zeref wants something other than Lumen Histoire, something or someone, Zeref and Aquarius speaking about the heartfilia clan and the Eclipse gate, and Aquarius telling to Lucy her key ressucited, i think Zeref wants to open the Eclipse gate and change History with the goal of making Natsu far more powerful he is now