User blog comment:Omega natsu2/Chapter 356: Tartarus arc - Prologue, Predictions./@comment-5426822-20131017012435/@comment-1359322-20131017015936

Tossing a filler arc in between the GMG won't be a good idea or rather it's a fools action. Well it's possible that they will use the Gildarts chapter to summarized the GMG till Day 4.