True, true WW2 has been covered ALOT in games but if done properly I believe it'll work. I have to say that the series has always suffered in the multiplayer dep't, if they addresed this convincingly it could be a "shot" in the arm for the WW2 shooter.
I'd like to see a sand box type game with a P.O.W break out, the number of guys in your team is down to how many you can liberate in the opening level. Include a risk/reward system, have all decisions permenant, sneak when poss, blow it sky high when not. Brothers in arms: Escape from Colditz.