User blog comment:Miskos3/Fairy Tail Chapter 334: Sin and Sacrifice, Review/@comment-6904925-20130607131722

I didn't see that coming, but overall a good chapter.

Here's what I'm thinking, I suspect that will be more deaths coming and maybe Natsu will see he can't beat future Rogue, (perhaps that is what is stated in future Lucy journal), so I think they will decide to use the Eclipse machine for their original plan to go back in time and stop Zeref, thus that's how Zeref knows him.