New Formable Ideas! Part 1 - Zapadoslavia

Zapadoslavia is a reasonably common state in alternate history, where it often is a union of the Polish, Czech and Slovachian people due to either joint German and Russian agression or due to a movement like Yugoslavism. Zapadoslavia means "West Slavia" in most slavic languages, except for Polish. In Victoria 3, Zapadoslavia could be a country formed of all Czech, Polish and Slovakian homeland, and may be formed by all Czech, Polish and Slovakian nations. It would require controlling all these states and Pan-Nationalism

Zapadoslavia would be called Zachodoslavia if it is formed by a country with Polish primary culture.

Here's a map of the state it would require:

Pretty much an alternate country for you to form as Krakow