With the popularity of Marvel movies and war games, the time is ripe for a proper Captain America game. Just think about it; you're in the thick of WWII as a super soldier. You are working your way through a tactical world trying to find Hydra's home base. You can visit classic scenes from the war with new eyes and completely different gameplay from most war games.
Flip around and throw your shield, throw cars and tanks and use the occasional pistol in a pinch. The mechanics are pretty simple to tweak to make right for the character. That's the only way I want a WWII game to come back, honestly: if you play as Captain America.