User blog comment:Omega natsu2/Episode 202: Welcome Home, Frosch, Review./@comment-3163807-20141004230034/@comment-2125188-20141005043811

Well i hope it's after the eclipse celestial spirit arc cause any later then that then too much time would've passed and no one (the characters in the series) would be thinking about the Grand Magic Games anymore.

However, in saying that, would they really need to any omakes right after filler? They may make the end of the filler lead directly into canon like how the key of the starry sky arc did it.

My guess is that if they were to animate it would most likely an OVA.