Future Earth

In a future history series, we can follow the narrative into space and forget about Earth:

although James Blish's Cities In Flight follows They Shall Have Stars and A Life For The Stars with Earthman, Come Home, it concludes in another universe;

Blish's The Seedling Stars ends so far in the future that the changed Earth is about to be reclaimed by Adapted Men;

Poul Anderson's Technic History ends with four stories set further and further away in interstellar space;

Anderson's Psychotechnic History ends when Galactic human beings return to Earth but only to evacuate the remaining population.

The Psychotechnic History shows us four stages of the future Earth:

devastated;
urbanized;
quiet;
peasant.