I don't know that bringing back the People Mover is what Tomorrowland needs, but Tomorrowland needs more care than it is getting. When I was a boy, Tomorrowland was the most exciting part of Disneyland for me. It seems to be more of a Yesterdayland now. Disney cast members quietly blame new project managers for letting the land deteriorate.
Cheer up! I think there are still at least three E-ticket attractions left in that section of the park. Most of the parks lands only have one. The imagneers seem to have some good new ideas though those new ideas seem to be implemented in other parts of DLR.