I think it would end up being to a degree a sort of 'generic fantasy game' in many regards; which would that be the most horrific of concepts? Again, this is purely in my batting ideas around in a public form phase as Ihaven't even heavily contemplated designing or running a game in 8+ years. However, the books gave me an inkling and I know there's been hints here in the past that a sort of fantasy esque game would be something people would like. Something less Lords and Ladies.
Just shooting from the hip, the sorts of character types that might be feasible would be obviously the military personnel, the support personnel and the like. But I could also see political agents and spy sorts having jobs and roles. It is a bit of a more 'narrow' theme in that regard but if approached from a chapter style where every few months the game transitions into a new area following the results of the previous campaign perhaps? Again, just throwing ideas up against the wall to see if anything sticks and to see if other minds have anything.