The Grand Alliance Order will most likely be getting a book in the near future, and most likely very soon. The big question is...... Will Bretonnia still be here?
This is from a very solid source that has been correct over and over about these releases. So I expect that this will come to pass as well.
via anonymous sources on Faeit 212
Expect Bretonnia to go the way of the Dodo once Grand Alliance: Order