Other then that I am sorry but I don’t know what title you are specifically referring to when you say KnH
Edit: I guess you were referring to the Japanese title for Apothecary Diaries which is, Kusuriya no Hitorigoto, as for that title, although the date is still tentative, the translator did post the following message:
Good news! Provided there are no further hiccups (and we certainly hope there won't be), part 1 of volume 2 should launch this Friday, Feb 19th. The second volume is just a little bit longer than the first one, so it will run in 11 parts.
Once again, we can't thank you enough for your understanding and patience during this delay, and we really look forward to sharing volume 2 with you!
So the date for the finalized ebook release is a bit far off still, (will be released a few weeks after the final part is released on the site) but the volume will begin pre-publication on the site, hopefully soon.
As an add to the above, for series that include ".5" volumes, this also breaks pretty badly.
For me, I have to do things like "fix" all the metadata to be something like "vv.s" - e.g. 01.0, 01.5, 02.0, etc.
Honestly, I wish readers and libraries would actually sort these properly. Something like C#'s Version class which properly deals with the xx.yy.zz.aa version string (and its sub-variants, eg. xx.yy, xx.yy.zz).
Premium versions also provide high quality artwork for novels with illustrations. Prepubs do not include the colour illustrations. So that is another reason to spend a credit even if you've read the prepubs and there isn't premium bonus content. There is also additional editing compared to the prepub version and you get it in epub format.
The official J-Novel Club twitter account tweets about physical editions all the time, and always tweets when a physical book comes out on release date (they've tweeted about the FMP hardcovers dozens of times, for what it's worth).
Further complicating matters is that publishers must sign a contract with Amazon that forbids them from pricing books more cheaply than what they charge on Amazon... which would actually prevent J-Novel Club from selling the books for $6 to premium subscribers. The workaround (which I've seen other publishers use too) is that the book you buy from J-Novel Club isn't the same book. It's a different book because of the bonus content. So they're not selling the same book cheaper than on Amazon, they're selling a different book cheaper.
It's not something that would work for many titles much less most titles but I could see it for a small handful, where there would be enough of a demand and where the author is aware enough of who and what J-Novel is to entertain the idea. In that regard at least AoB would probably be the idea target.
Though one can always hope that someday J Novel reaches the same heights as Yen Press and Seven Seas.
Though a better and faster version.
I'm waiting for the physicals for Seirei Gensouki to arrive in their omnibus forms.