Despite not being able to make a full-on Hulk film since The Incredible Hulk helped kick off the MCU, that doesn’t mean the idea of it hasn’t changed things. In an interview with The Wrap, Kevin Feige noted to Humberto Gonzalez that a report he made caused Feige and director of Age of Ultron Joss Whedon to change the ending of the film.
“You had the big scoop about us doing Planet Hulk,” Feige said. “It turned out to be accurate [but] at the time, it was not accurate because we didn’t have any plans to do it and Joss [Whedon] was doing Age of Ultron at that time. The way it ends as you recall with Hulk in the Quinjet going off, right?”
Feige continued, “We said, ‘Joss, we can’t do that because he’s not going into space and people are going to think we’re doing Planet Hulk because Umberto has some big hot scoop that we’re doing Planet Hulk, we can’t do it.’ He goes, ‘Well, what are you going to do?’ We said, ‘We don’t know.’ So, if you go back and look at that shot of the movie, he’s in the sky. It’s blue sky.”
Ironically, Planet Hulk is happening, but because of Thor: Ragnarok, and it’s only a part of the story.