Alt-history writing-wise I could kinda see having things be more or less the same up to the various German revolutionaries being able to (for the sake of fiction, not any single act) fight at the same time. But that sure as hell wouldn't get a communist Germany, it would likely mean the German army going hard against them, or crumbling still but the Allies moving right in to attack the Soviets from Bavaria all the way to Vladivostok. All this shit would change the treaties with the Baltics, etc.