man, Togashi's in quite the unpleasant situation:
- chronic back pain that prevents him from continuing HxH
- fans asking him to relinquish part of the series that he seems to want to make himself
on one side you gotta think about bus factor and project management(which can be hell depending on who's on the team(which I can personally say from first hand exp can be awful at times))
on the other hand tho:
- distribution of tasks can help minimize difficulty (all-for-one)
- relinquishing a bit of control for the tradeoff of better efficiency in development
Personally I would choose the latter but if Togashi chose the former I couldn't blame them as I can totally understand this is like their sapling project that eventually bore a lot of fruit
Either way, please get well soon Togashi-san!✊