I'm wondering if the mangaka is in hiatus because we were left with such a cliffhanger in chapter 50 but there has been nothing since last year. Sublime is not listing the volume for release yet either.

Has anyone heard anything?

*This is 100% guess and assumption but
I'm thinking that volume 9 is going to take a while to release in Japan,
just because the manga is being serialized in a magazine.
They'll probably wait until they have enough to compose/compress it into a full volume.
And that's before Sublime licenses and translates it.

Well, the official release date is June 10, 2016. Let's celebrate!

When will they release the next volume?? (vol 10), And isn't it monthy chapter release in japan??so if every vol contains about 10 chapter then , shouldn't every volume come after 10 month or so?? 😢