Dr. Strange 2 almost had a Fantastic Four post-credits scene
Screenwriter Michael Waldron was bound and determined to get Reed Richards into the movie, one way or another

[This article contains spoilers for Doctor Strange In The Multiverse Of Madness.]
The relationship between this year’s Doctor Strange In The Multiverse Of Madness, and Marvel’s plans to finally, at long last, bring the Fantastic Four into the MCU fold, has always been a strange one. Sam Raimi’s film, co-written by Michael Waldron, finally settled on something of a half-measure: Briefly introducing frequent fan-cast actor John Krasinski as Reed “Mr. Fantastic” Richards in a mid-film scene—only to have him get swiftly killed off in a way that would allow Marvel to re-cast the part very easily if they end up changing their minds down the line. (Even if they don’t use the easy “Alternate universe!” escape hatch, who knows what that face might look like after they finish re-assembling it from Dude Spaghetti, right?)