At the end of Thunderbolts earlier this year, audiences were teased with the arrival of the Fantastic Four to Earth-616, but this was not referenced in the latest Marvel film, and Shakman is revealing why.
“No, no, no, because the Thunderbolts* end credit scene was also created, you know, relatively late in my process too, so that was not something that I was familiar with because it hadn’t been created at the time that I was working on my script, you know?” the filmmaker told CinemaBlend.

Matt Shakman On Why ‘The Fantastic Four: First Steps’ Didn’t Give Continuity To ‘Thunderbolts’ Post-Credits Scene
Director Matt Shakman is explaining why The Fantastic Four: First Steps didn't give continuity to the post-credits scene in Thunderbolts from earlier this year.
