Supreme Ruler: Cold War is the next game in the Supreme Commander series, except now it takes place in the aforementioned time period. The game focuses on the relationship between the NATO and USSR powers at the height of the conflict, each side trying to expand their influence while keeping the other from dropping the bomb.
Seems like a really cool (pun not intended) setting for a strategy game of this type. No gameplay footage or anything at this point, but I look forward to seeing more details get dropped at GDC.
Also, someone needs to make a WarGames mod of this game once it comes out.