Maybe you could have something like the Nazi's pushing the Soviets back(somehow) to the Urals, with Fall Bleu successful. Nazi's win, etc. However, the USSR is still around, and pushes it's influence into Central Asia and China against the retreating Japanese(the Pacific War goes as OTL). A real alliance is built between Mao's China and the USSR, with no Sino-Soviet split b/c the USSR isn't in a position to lose China as an ally, as they will be too weak. Then we see a facist bloc(Europe), and Democratic bloc(the US and British) and a communist bloc(most of USSR, China) when nukes are invented.