From the announcement:
A new redux book of a mighty one hundred and sixty eight pages containing everything there is for Slaughterloo 2nd edition. Full rules, full background, every nation in the wars, every unit of every army, full stats tables and optional advanced rules plus acres of artwork and blank division rosters and copyable cards.
The 28mm Mass Battle System set in the black powder fantasy wars of the World of Valon.
Pre-Order before 18.01.13 and you will get Promo2012 (worth 2.50GBP) for FREE with your book. Awesome!