User blog comment:FairyRaven/Fairy Tail Chapter 352: The Flame's Voice, Review and Commentary/@comment-8153438-20130920111230/@comment-7418318-20130920112248

The way Roubaul and Mavis are able to still use their magical powers to some degree after their death' I guess that's a possibility, but with Igneel being more than 400 years old I wouldn't be surprised if Atlas was also still alive.

As for the arc, I think we'll get something like with the GMG arc.

There we got little pieces of the Eclipse story throughout the actual GMG parts until it fully moved onto the Eclipse part and because they were so interwoven, we couldn't just split it at any single point.

Here we got plenty of hints toward the Underworld and the Succubus Eye mages who were already shown not to be the ones who froze the village.