It's often been claimed that the Soviet 'pyrrhic victory' over Finland in the Winter War was one of the primary reasons why the Germans invaded the USSR when they did (mid-1941); it gave Hitler and his commanders confidence that they could easily steamroll the Soviet defences before the winter of 1941-42. It wasn't so simple of course; the Germans had to wait until the Spring and Autumn Offensives of 1942 before they broke the back of the Soviet military, and early-1943 before the government capitulated. Still, the weak showing of the Soviets in what should have been an 'easy war' against the Finnish may have been one of the most important events of the past century.
My question is this; what if the USSR had won a more decisive victory over Finland during the Winter War? Say, they manage to overrun their enemy's defences and annex the country like they had done to the former Baltic States. Would this have given Hitler reason to pause in his invasion of the USSR, perhaps up to mid-1942 so he can build up a larger force for Barbarossa?
If so, I think it might be reasonable to suggest that the Soviets may have been able to fully reorganise their military before the German invasion, and perhaps even repulse them back to their 1939 borders. If that happens, do you think the Allied Powers would continue fighting until they managed to force Germany to sign an armistice à la the First Great War; or could it be possible that invasions from the West (Americans, Brits, etc.) and East (Soviets) would result in the Nazi Regime collapsing ~50 years earlier than OTL (I'm thinking somewhere around 1943/44)?