UDON and Capcom have a lot of books on the way in 2020, the latest to be announced today being Breath Of Fire: Official Complete Works. Much like other books they have announced, this is basically a tome of knowledge for the entire franchise, with 192 pages of content. Since Capcom doesn't appear to be working on a new game in the IP right now, we're guessing this is going to be about as complete as it gets. The book will sell for $50 and will be released on May 5th 2020. Here's a brief description of it from the publisher.
The classic Breath Of Fire series stands out as Capcom's most acclaimed foray into the fantasy RPG genre. Now, gamers can revisit the many worlds and characters of this beloved franchise through its wonderful characters and visuals. Breath of Fire: Official Complete Works collects the artwork of all five console games in the series, including character designs, rough sketches, game covers, pinups, character profiles, creator commentary, and more!