Hunter x Hunter is going on hiatus after the release of Chapter 360, but the thing is, we don’t know when the manga will return.
Weekly Shonen Jump hasn’t yet announced the break but there isn’t a solid date that the manga is set to come back; as the decision comes from the author himself.
Yoshihiro Togashi is however known to take long hiatuses for his work, with Hunter x Hunter only just returning from a long hiatus April this year. Fans are hoping that it won’t be too long a break, but it’s likely that Togashi’s health condition is the source of this most recent hiatus.
However chapter 360 (titled Parasite) will still be released, which will have Kurapika testing the loyalty of the guards to Prince Woble; the events which transpire will in turn trigger the start of the Royal Succession War.