User blog comment:BlackWizardZeref/Fairy Tail Chapter 394: Juvia vs Keith Review/@comment-112.210.70.6-20140725105421/@comment-25244540-20140725105648

Yeah, and I've noticed each member of Team Natsu in this arc has gained a power up so far. Wendy = Dragon Force, Lucy = Summoning the Celestial Spirit King and being gifted Aquarius' powers, Gray = His father passing his Ice Devil Slayer Magic to him.

The only two left in Team Natsu who haven't gotten a power up are Erza and Natsu, and Natsu seems more likely to be last.