[koheripbal]

There are always some people who stay, and always some of the children of the people who left will return to revitalize the area.

It takes one or two generations for that secondary effect of revitalization but it happens as children and grandchildren of those who emigrated want to return to their culture and find land prices very low.

I've seen it in rural China, India, and Italy before that. Even Russia had a large number of emigrant's (or their children) return during the economic book in the 2000's. Potion ruined that, and many have since left again, but it demonstrates the effect.

Eastern Europe will be the same.