There will be souls so stuck in the Old Age that even after another death and rebirth to this earth, won't be ready for the New Age. In 2150 A.D. the "micro" Old Age is recreated by such souls. People actually re-dye their skin white, black, red, yellow, brown and give up birth control. They return to living in a class society.
But for someone like Logan- still not fully enlightened- yearning for the "freedom" of the Old Age, that world would be a hell, and death at 30 the end of life forever. Just as many people think death is now.