“There will be a tag,” Feige says. "That is, there will be a short, epilogue-like scene that pops up shortly after the credits start. But there’s not a post-post-credit scene.”

Whedon said that he and Marvel Studios did have talks about doing an actual scene to be shown after the credits, but in the brainstorming realized they didn't want to re-tread old ground.

“It didn’t seem to lend itself in the same way, and we wanted to be true to what felt right,” Whedon says. “The first rule of making a sequel is take the best moments and do something else. Don’t do the Indiana Jones gun trick again differently. Just go somewhere else. Don’t try to hit the same highs, because people will sense it.”

One surprise that Whedon does guarantee is a "secret female character" who will appear in Avengers: Age of Ultron. Speculation surrounding the debut of Captain Marvel has followed the film, but Whedon shot that possibility down. Feige said that the character would be familiar, but "it’s not a big deal. But it’s a good character."