America seized the power of the kaisers and immediately started appointing czars. That's a nominal hint. The Cold War indicates a global duopoly represented by the two feet of the Daniel 2 statue.

The enemy to come will certainly use his infiltrations in both America and Russia to consolidate power (I count the powers as Washington, London-Rome, Tokyo, BRICS, Mideast, and Africa). I'm not sure why this would trouble Orthodox eschatology.