It has not been publised by either. The prospect of the restart doesn't look up while the do not carry of the work. The reason seems that the author sickness.
There are currently only 23 volumes of this manga even in Japan. As you may already know, the author, Yoshihiro Togashi hasn't written a chapter of Hunter x Hunter for about an year now; the chances that volume 24 will come out are quite slim at this point.