User blog comment:Martialmaniac/How will Gon regain his Nen?/@comment-14902757-20151018012154/@comment-5780397-20151127153435

Sadly, I am convinced we'll never read any full arcs again, but anyway.

I think the Nen runes and God's Letters will (would) be explained in more detail in the DC arc, or at least need to. I am still very intrigued by them.

I think what Ging meant is that, as a Nen user, he can feel Gon's aura, which means it is still there, like for all living creatures; on the other hand, Gon, not being a Nen user anymore, can't feel it.