Let's say the CP win in 1918 or 1919, because the US stays out of the war. Brest-Litovsk stands as in OTL and Britain exits the war via treaty. A-H is falling apart after the war and the Ottomans aren't looking so good either.
This means Germany is the only country left standing, but just barely. The challenge is now to create out of the aches of the war a new European order. In this timeline Germany could do whatever it wants, within reasonable boundaries. The question is what to do?
What is the best way to create a post war Europe, which is stable and serves to some extend Germany’s interest?
What should be done with the newly created countries like Poland, Ukraine, Belarus and others? What form of government should they get?
What of the new countries that will come out of A-H and Balkans?
And the big question what to do with France and Italy?
I don't really care about the plans Germany did make. I want to know what you think Germany should have done in this scenario.