User blog comment:FairyRaven/Fairy Tail Chapter 347: Red, Blue, Blond Hair Fight! Review and Commentary/@comment-112.205.35.163-20130816164557/@comment-4643135-20130817083646

I also also hope it's Zeref-related, but not too much of zeref himself. It seems to be a Fairy Tail pattern to save a good majority of a big baddie for the main battle with them. If the confrontation happens too soon, then the series won't last much longer. Though I'm curious how the evil that has been concentrated in him would be redistributed. As was stated at the end of the Oracion Seis arc, evil doesn't go away, it has to remain equal to the positive energy in the world.