If he can't that essentially renders the main character useless right. Also if he gets his nen back do you think he'll get a different type since he came back from almost being dead. Is there any chance he'll get a different nen nature.
closed as primarily opinion-based by W. Are, Maroon, Turamarth, Gagantous, Wondercricket Feb 5 at 14:00
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There have been no blatant indications in the manga or anime to show that he will get his Nen back.
In most other shonen manga's you would expect a protagonist who loses their powers to eventually regain them stronger or in a different way. This is best seen in Bleach where Ichigo and his allies does this many times. As Hunter x Hunter frequently is designed to subvert expectations, however, there is no reason to presume Gon will get his powers back.