If we have a weaker Soviet Government, then it's safe to assume that, say, the Far East Republic is going to survive with him, and the Red Army won't be able to crush uprisings in Siberia. What this leaves is a strong jumping off point for Von Sternberg- part of his issue was that he jumping into Russia without knowing that the rebellions in Siberia had been crushed, so if the rebellions held strong it's not a stretch for Siberians to ally with him under the hopes of restoring order (I mean, he was batshit, but what he did with his corner of Mongolia shows he was able to keep some order). With control of Siberia, and either an alliance or control of the Far East Republic (alliance would mean he doesn't go and charge at Japan), then he would have a suitable region to sustain a nation. Say what you will about agriculture in the Russian Far East, but it can work. Give it ten years (or less), with him continuing to act on behalf of the The Bogd Khan, and he might finally feel he is ready to launch he re-invasion of the Soviet Union.