There are quite a few timelines with either no or reduced WWII, like Faeelin Stresemann timeline, EdT’s Greater Britain or any other you could think of.
What are your general thoughts about Winter War equivalents in these timelines? Is there still an incentive for the Soviets to start such a war? What if the war is fought in more favorable conditions, like in the summer or without Mannerheim? What happens with Finland afterwards?