I wouldn't call this a cycle as much as consolidation. People are moving away from certain areas because their culture requires things which do not exist there anymore and other people with different culture then go there for other reasons. These new people cause some local things to start adapting to the new culture growing in that area.
I guess we are talking about farming families moving to Germany and cities looking for jobs because big industry doesn't exist in the villages anymore and they aren't the business type which can adapt to modern farming and way of doing business. Then there's highly educated people who wish to move away from the city and start doing remote work from some nice countryside or business people from the city who want to start a modern farming or tourism industry somewhere. I wouldn't say this is a cycle because this is one cultural transformation which has been going on in transitioning countries for the past 2-3 decades and not something which is happening every 10 years causing people to move back.
I guess we are talking about farming families moving to Germany and cities looking for jobs because big industry doesn't exist in the villages anymore and they aren't the business type which can adapt to modern farming and way of doing business. Then there's highly educated people who wish to move away from the city and start doing remote work from some nice countryside or business people from the city who want to start a modern farming or tourism industry somewhere. I wouldn't say this is a cycle because this is one cultural transformation which has been going on in transitioning countries for the past 2-3 decades and not something which is happening every 10 years causing people to move back.