Warning: This article contains SPOILERS for Superman & Lois season 4, episode 7.Superman & Lois season 4’s latest episode brings a major change to its lead hero, and that heightens the chances of the biggest theory about the show’s ending turning out to be accurate. The team behind the DC series originally had plans for Superman & Lois to go on for at least seven seasons. However, many factors contributed to Superman & Lois season 4 being the show’s last, allowing James Gunn’s DC Universe to have the only ongoing live-action version of the Man of Steel when David Corenswet’s Superman debuts in 2025.