Some people think the MCU is now running mostly on nostalgia, and they are not wrong. For a while, Marvel tried to do new things, but most of those didn’t really work out, more misses than hits. Now it feels like they’re trying to copy their past success instead of moving forward. The Doomsday cast announcement, for example, felt like a big show meant to copy the excitement of the Endgame era.

Now, people have known for a while that Robert Downey Jr. is coming back, not as Iron Man, but as Doctor Doom. That news really shook things up. Some fans are super excited, others think it’s a terrible idea. It’s got people arguing all over the internet. And just as the news was starting to settle and fans were beginning to form their opinions, something even crazier happened!

Marvel writer Chris Claremont said at...