As Widgren said, Osprey and AA are re-releasing Force on Force as a big, shiny hardback. While the rules do allow you to play both FOF- and AA-level games, the systems are entirely integrated, so games can be scaled up and down with ease.
The rulebook and the Road to Baghdad supplement have just gone out for pre-print prep – they look incredible! April is the scheduled date for both of those, so not too long to wait...