I can understand that. My favorite form of fiction is historical fiction - mainly as a means of humanizing the characters of the era - and believe that there's a wealth of great stuff out there that's hardly tapped in the general public's eye.
That said, considering how reticent developers are when it comes to hiring bona fide writers, the chances of them commissioning historians is less likely than Michelle Bachmann having a mixed marriage.
Are you a fan of Bernard Cornwell at all? He seems to be very to your tastes and he's a favourite author of mine. The Warlord Chronicles and the Saxon Stories made me actually care about the Britons and Anglo-Saxons during the Dark Ages.