I have a comprehensive scholary analysis of German plans in case of victory in WW1 by Immanuel Geiss, a German historian.
I know several aspects of plans towards Europe by Germany.
The key concept of German planning was the so called "Mitteleurope"- an hegemony of Germany towards countries of Central Europe.
Poland, Ukraine, Belarus, Lithuania would become vassal states, with their economies, military and industry in German hands and for German exploitation. There would be a Baltic Duchy made from Livonia-or Latvia and Estonia as they are called. Germans would be the ruling class in Baltic Duchy and this would become one of areas of planned German colonisation in the East.
You see Germans believed they have too little area to feed and allow growth of their state so they wanted to gain "living space"-Lebensraum-the theory was developed and influenced German politics well before Hitler.
Germans also wanted to take circa 30,000 square km from Congress Poland and expell some 2 milion Poles and Jews to make room for German colonists(20 years later Hitler copyied the plans in Warthagau plan).
Poland itself would be made a puppet state with a German noble as its king. It was forseen that it would be exploited in terms of economy and its military would be under German control.
Germans generally were opposed to Austro-Polish solution-that is the linking of Congress Poland to Austro-Hungary as third kingdom.
From what I know West Galicia would be seperated from Austro-Hungary, with AH hoping to get Romania as third kingdom. West Galicia would be linked to Poland.
Poland itself it was believed in time would become Germanised, some military hawks wanted to hunger Polish population in order to reduce its numbers.
Generally the Mitteleuropa plan was made to allow Germany industrial growth on scale allowing succesfull competition with Great Britain and USA on world stage.
You can read the base ideas here :
*Luxemburg becomes German state
*Belgium becomes a puppet state
annexation of mine areas in France
In the Eurasianists’ view, it was Tatars – to be precise, the Mongols of the 13th century – who laid the foundation of Russian statehood, culture, and, to some degree, even ethnicity.