With BLB2 behind us, the next book is on the way - no rest for the wicked.
This will be for the Crimean War, working title is FOUR EMPIRES, and you will need a copy of REPUBLIC TO EMPIRE to play. However, even if you don't use our rules, this book will be a great reference because we intend to cover the armies and uniforms in detail from a wargamer's perspective. Of course there will also be tons of photos of well painted minis on fantastic terrain, all the rules you need to bring R2E to the Crimea, and a turn-by-turn battle report.
No date has been set for release... watch this space!