AHC: Yalta results in different division of Germany?

The February 1945 Yalta conference determined the post-war status and division of Germany.

I’ve seen several other plans that were circling at the time for splitting Germany but none seem to be realistic. I can't imagine the allies actually going through something like the Morgenthau Plan.

So what POD at or around Yalta actually results in a different plan for the division of Germany?
Roosevelt dying early? Churchill being replaced early by Attlee?
 
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