User blog comment:Jopjopjop/Volume 19 Spoilers/@comment-85.220.17.71-20150406215125/@comment-24502975-20150406234836

18 is in the midst of translation. 19 will follow. 20 will be released "soon".

You know, since Ishibumi thought that half a month was a really long time, I wouldn't be surprised if we got more info on v20 in a couple days from now.