Me and
@Joshua Ben Ari talked a few things for this so I figure I post some of it here.
1: Major amount of emigration to Canada, France, or Brazil from China and Eastern Europe. In OTL, a lot of Hongkongers moved to Canada before 1997 to avoid Chinese rule; so there definitely be a lot of Chinese immigration to Canada - particularly Vancouver, Victoria, and Toronto. Britain is closer, so you could see Hungarians, Poles, and Romanians moving to Britain to escape Communism and the collapse of the USSR.
2: Churchill's idea to invade the USSR after the war will be getting a lot of credence. Basically, Churchill saw Stalin's evilness but FDR was unable to see it and blinded by idealism. FDR is ruined by Yalta and giving too much to Stalin while Churchill would be a prophet with his Iron Curtain speech.
3: Almost all the villains will be Russians or Communists (or even a collaboration between ex-Nazis and Communists).
4: Japan will become a military power in East Asia with it the backbone of the KMT and to counter Soviets and Reds in the region.
5: TTL, Magneto take the role of damaged hero, survived the Nazi Holocaust as a child, the Soviet Holocaust as a young man, and he became a Nazi and Stalinist hunter in the late 1950s after escaping to Israel to help Nazi Holocaust survivors.
Israel becomes a haven for Middle Eastern and Russian Jewish mutants who are fleeing persecution in the Arab states and former Soviet Union, with Magneto becoming a sort of anti-hero Professor X preaching a kind of Mutant Pride-style Jewish Pride movement.
Xavier, a syndicalist (or dyed-in-the-wool liberal), believes that people are fundamentally good but that mutants need to integrate and assimilate into society. The Soviets and Nazis are aberrations in mankind, that Man has been progressing forward. Essentially, Xavier is an idealist and seen as a bit too youthful and inexperienced compared to Magneto.
6: Future Space Race between America, Japan, the UK/France, and maybe Brazil. China and Russia too down the line.