For Gon, his relationship with Chrollo would be crucial. Chrollo is the leader of the Phantom Troupe, and Gon's sense of justice might clash with Chrollo's leadership. However, Gon might also see some good in Chrollo and try to influence him in a positive way. Killua would likely form alliances with the more practical members of the troupe, like Pakunoda. She's smart and has a good understanding of the group's dynamics. Killua could learn a lot from her about how to survive within the troupe. As time passes, both Gon and Killua would have to adapt to the different personalities and values of the Phantom Troupe members, which would be a continuous process of give - and - take.
The Hunter x Hunter manga is unfortunately not complete. The author has faced various issues that have led to intermittent breaks and an unresolved storyline.
The Hunter x Hunter manga has indeed concluded. However, the ending might have left some fans wanting more or with mixed feelings depending on their expectations.
Unfortunately, Hunter x Hunter manga is on hiatus. The author has faced various health and creative challenges that have led to the pause in its publication.