The new exurbs are typically three to four hours (or more) from major metro areas. They have access to clean water and dependable utilities. The new exurbs are typically not an easy commute to a big city. The new exurbs are not the suburbs!
The new exurbs have an educated population that is generally tech-literate. There is typically a concentration of ex-corporate professionals and entrepreneurs.
The new exurbs tend to have quality restaurants, small museums, and entertainment (but obviously on a smaller scale than in the big cities). And in the best-case scenario, there will be a private or municipal airport nearby.
The new exurbs are almost always clean, quiet, and scenic, and often border national or state parks.
Some examples of the new exurbs in the U.S.:
Coeur d'Alene, ID
Hilton Head Island
Jackson Hole, WY