User blog comment:Miskos3/Fairy Tail Episode 241: Tartaros arc: Devil Reincarnation, Review/@comment-7418318-20150711205009

Seems like they droped the "part x" bits in the episode titles. Either that or they shortened part 2 "Sond of the Heavenly Dragon" quite a bit, since the four chapters covered this and next week (judging by the preview, it'll be two chapters again) are already in part 2 in the manga.