Interesting idea that China turns fascist if the Nationalists win the Chinese civil war. Still, I don't see them being able to take the USSR's far eastern territories, the Soviets would drive them back and launch a counter invasion which would see the Nationalists fall from power.
I do see the Communists losing in Korea and Vietnam though. Also, Nationalist China wouldn't be fascist forever. They'd likely over time become democratic like Taiwan did in our timeline.
after Japanese imperialism, Korea became a republic of sorts in OTL. I doubt Korean Nobility would be very popular. Maybe "nobility" which no longer has any actual priviledges, but if it's part of "Zhongguo" I doubt it'll stay in it.