Japanese disks for general release. Announced for November 21, 2018, available for preorder. Some listed with English subtitles, (【字幕】 ・英語字幕), others without.
http://asagao-anime.com/product/bd/
Different versions, formats and contents, as listed on Amazon Japan at the moment:
https://www.amazon.co.jp/dp/B07HBLF98F/
https://www.amazon.co.jp/dp/B07HBP72C8/