This is an excellent idea, Brother!
While we're at it, there are way too many useless countries over there in Central Europe. Germany should receive back what is now Western Poland, and in turn Poland should annex all these meaningless countries. This would be a much less confusing map of Eastern Europe:
So basically what I'm proposing, is going back to borders from 17th rather than 20th century . There were just too many ethnic state divisions starting in 19th century.