The Fast & Furious franchise has made good use of post-credit scenes as a setup for future installments of the franchise. Continuing the tradition, Fast X will definitely feature a post-credits scene and, according to the rumors, it might include a cameo from a mysterious character.
The latest edition of The Hollywood Reporter's Heat Vision reveals that Fast X's post-credits scene "may or may not have a guest cameo."
This new information suggests that a post-credits scene was recently filmed after the movie wrapped up filming a year ago. However, the rumor didn't reveal who the character will be, but many have a hunch.
The Fast and Furious franchise has seen a number of guest characters throughout the series. Given that Fast and Furious 11 will close out the mainline series, we'll likely see the return of a fan-favorite character.