Netero should have a hall of fame only for himself. Such a shame the fight felt so short but I guess that its better this way. I doubt the king has died from the explosion but I can see him without some limbs and in need of serious healing and Pouf is quite crazy right now maybe he could try a move to become king. Without Pitou there to heal him he could be an "easy" target for some time.
Seeing how no1 was able of "damaging" the king nor the royal guards seriously I dobut Gon is going to kill Pitou. They are in a whole different level. So not really sure what will happen maybe what mfauli says about a peaceful solution and an understanding. King badly injured, Pitou restrained by Komugi (she will threaten her to not hurt the humans) and Youpi fighting (and maybe dying) to save the "changed" injured king (with his new fear, he discovered that humans would first blow the earth than surrending to the ants, and respect for humanity)from pouf.
ps. I would hate that any random guy now defeated the king "fairly" in a fight after seeing Netero give his all life training hit and his own life as a sucide bomber. He was too great a charcter to be defiled like that.