I had thought that these rules were intended to cover the Thirty Years War and the English Civil War but according to Warlord's announcement they have been expanded to include the Italian Wars, the Tudor Wars in the British Isles and the War of the Grand Alliance.
I am in two minds about ordering them as I know they will be nicely produced with some lovely eye candy and I do have both Tudor Wars and Montrose figures that I could use with them; however, I am still not entirely sold on the Black Powder system.
In any event, if you are interested Amazon have them available for pre-order at a significant discount - £19.50 as opposed to the £30 RRP. Although you won't get the free miniature that Warlord are offering.
If you're interested I've popped an Amazon affiliate link below: