With the typesetting of this 5-page extra chapter from the guidebook, there are only two chapters left untranslated:
--"Lock", which was originally chapter 53 in the magazines and excluded from the volumes, both raws and the official english releases, but packaged into the guidebook.
--Another extra chapter from the guidebook about preparing for the culture festival.
There's a bunch of other material in the guidebook too, but those are the missing "chapters" I'm aware of. The person on /a/ who's been storytiming the volumes has been hinting they'll translate the rest, so here's hoping for something in the next few weeks.