I'm writing a book that might interest some people here:
Legends of 16-Bit Game Development: A History of Treasure and the Sega Mega Drive / Genesis
This is based on extensive research I've done in Japanese, and the book is full of new information on the history of Treasure that (in my opinion) is really exciting.
You can read an excerpt here:
Hideyuki Suganami and the Birth of Seven Force
The book is currently on Kickstarter, so if you're interested, please support it! I can't make this a reality without a lot of help.
https://www.kickstarter.com/projects...me-development