User blog comment:NorbertGuitarman/Neon's Nen/@comment-25376922-20151007054539/@comment-5780397-20151007201035

She should remain a Specialist. Someone, perhaps Mizuken, explained that it is extremely rare for someone's aura to change. There are cases of Conjurers and Manipulators becoming Specialists, but Neon is probably a natural Specialist, since she never learned anything about Nen before acquiring her ability. Besides, her aura is still there: if Chrollo had stolen, say, Knuckle's Hakoware, he could still use his aura freely and develop a new ability, because it was never stated that Chrollo's victims lose the ability to use aura. Most likely, it will be the same for Gon.