Let's assume (I know that's an unlikely scenario) for the purpose of the alternate history that following the World War II allies decided, against common sense, to split Germany into smaller states (new eastern borders and iron curtain itself remains the same, ftr) and that's remained into an effect today.
So what states would we have? Bavaria for sure, maybe Prussia (or two Prussias, one Democratic and one Communist, possibly uniting after 1989).
Discuss with original maps
Edited for grammar in thread title.