User blog comment:YuutaScarlett/Another Anime Break?/@comment-25334245-20140826231856/@comment-2125188-20140827082310

These were Special chapters i think they could adapt after the Grand Magic Games arc in order of likelihood

1 - Fairies' Penalty Game (Omake): I think this will fit perfectly, as it takes place after the Grand Magic Games arc. I don't see a reason why they won't adapt it after the Grand Magic Games arc has concluded.

2 - She's Erza!! (Omake): To my knowledge, I don't see a reason why it couldn't fit here.

3 - Natsu and Asuka (Omake): To my knowledge, I don't see a reason why it couldn't fit here.

4 - Fairy Woman (Omake): To my knowledge, I don't see a reason why it couldn't fit here.

5 - Lone Journey (Chapter 299): It was probably deemed irrelevant to the plot at the time and maybe they wanted to keep the story moving so they put it on the back-burner for later. They will probably re-write it so that it fits.

6 - 413 Days (Omake): Not sure if it could fit or not. Also it taking place 413 days since Juvia & Gray met would be impossible if it takes place after the time-skip. They could re-write it but that may be unlikely

7 - Welcome Back, Frosch (Omake): To my knowledge I think it could fit within that time period. But it could be skipped or adapted as an OVA due to explicitly.

Id be surprised if we don't have any fillers of any kind after the Grand Magic Games Arc.