Another plot could involve a character from the real world being transported into the Hunter x Hunter universe and having to quickly adapt to the system. They could start as a weak novice but then use their knowledge from the real world to find unique ways to level up and become a powerful Hunter. For example, they might use modern strategic thinking in battles or in exploring the complex world of Hunters.
How about a character who is a master of disguise within the Hunter x Hunter world? They could have a Nen ability that allows them to not only change their physical appearance but also their aura and nen - type. This would make them very difficult to detect and could lead to some really sneaky and devious plotlines. For example, they could infiltrate enemy groups or steal valuable information without being noticed.
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.