User blog comment:Omega natsu2/Chapter 377: The Sky Dragon's Imperial Wrath, Predictions./@comment-24467372-20140321225214/@comment-24066070-20140323100456

Or maybe the anon meant Jellal would use Abyss Break on Face? It probably takes a top-tier spell to even dent that thing.

He may also use it on Ezel, doubt he would mind killing Ezel. CS has been trying to destroy Zeref, so they would also take down Zeref's creations. I think Jellal wants to utterly destroy anything related to Zeref and I doubt he would resort to a nakama speech against a demon, besides there are already enough chars who like to pull a nakama speech whenever they can.

I also doubt Jellal knows these demons can just be revived.