Not sure if anyone noticed, but the Amazon description for the Hard Edition reads as follows:
Shindo L's emotionally brutal and twisted story reemerges as FAKKU’s first-ever Hardcover edition! Metamorphosis: Hard Edition comprises: -Metamorphosis: The original story of Saki's heartbreaking downfall. -The Raw Side: Drafts and Sketches: early draft pages of the entire manga, annotated with author’s thoughts on the creative process. Includes cut/alternate content not seen in the final edition. -Interview with Shindo L: Artist profile conducted by Kimi Rito that was first published in The History of Hentai Manga. -Pin-ups, illustration postcards, and a timeline of Shindo L's publication history. With 500-plus pages entombed in a sleek, hardcover presentation, The Hard Edition is the glow-up that Saki dreamed she could’ve had.
A book release announcement is slated for the 7th. Will it be this? Who knows.