I also would love to see a Combat Mission Fulda Gap. I love Flashpoint Campaigns Red Strom and would really be interested in Battlefronts take at the era.
You could also have different Opfor Troops like the eastern Germans, the Czech or the Polish. On the Bluefor side you could have the British, West Germans and Dutch/Belgian even the French. Some of the assets are already in some of the games when it comes to the armored vehicles.