I can't find any statistics about farmers selling their properties. I see an article about 25 farmers volunteering to be bought out and move on in one province, dated 2022-12-22. An article from 2022-11-10 lists a total of 31 farms nation wide. In practice, very little has happened after the last few years.

Farmers don't want to leave to Germany. That'd solve the Dutch problem quite effectively, but you'll need someone to buy the land, and who would buy a farm ready to house 30.000 chickens if you can't keep get the license because of economic impact?

This is why the government is offering to buy out farmers on the condition they don't use the money to start a farm elsewhere in the country, but very few farmers are budging.

Give it a few years and I expect meat imports in other countries will become more expensive. The problems you're seeing right now are more likely to be the result of greenhouses shutting down because of entirely unrelated reasons.