User blog comment:Miskos3/Episode 275: Fairy Tail Zerø: An Eternal Adventure, Review/@comment-3441749-20160313052805

There are definitely going to be some filler episodes. The Avatar arc was only twenty chapters long, and the anime is pretty efficient in how much it is able to put into one episode. Assuming that an average of two chapters corresponds to one episode, then the arc will be done in only ten weeks, and the unfinished Alvarez Arc will be upon us. Filler is a guarantee. Let's just hope it proves good. I mean, as filler arcs go, the Fairy Tail anime filler isn't the worst.