Will we get any? Legion might be argued to be such a book in disguise, but it would be nice with one focusing on the Imperial Army the way Nemesis focuses on the Assassinorum, The Outcast Dead on the Astra Telepathica, and Mechanicum on... well, the Mechanicum obviously.
Would such a book sell? Would it be a rip off of Gaunt's Ghosts? Would it, most importantly of all, be as awesome as I imagine?