Doctor Strange in the Multiverse of Madness featured some big cameos, but for some fans, that still wasn't enough. While we may have seen John Krasinski as Mister Fantastic, the return of Sir Patrick Stewart as Professor X, and even Anson Mount suited up as Black Bolt, the general consensus online seems to be that the sequel failed to live up to its title...and all those big rumours, of course.
It is what it is, but The Weekly Planet's James Clement has now made some wild claims about cameos Marvel Studios shot before deciding, for whatever reason, to leave on the cutting room floor.
Reiterating that the MCU's Mordo was supposed to be killed by the Scarlet Witch in an alternate opening scene, Clement says that Michael Fassbender shot scenes as Magneto and Ghost Rider was once set to be a member of The Illuminati. As for Deadpool, it sounds like Ryan Reynolds was going to appear in a post-credits scene (that would have been one way to bring him into the MCU...).
In conclusion, he says that his source relayed that these cameos were "filmed but ultimately cut from the theatrical version," though we're having a hard time believing all those actors were cut from the movie unless Marvel has concrete plans for them beyond the Doctor Strange sequel.
We know that's the case with Deadpool, of course, while Ghost Rider showing up at some point is no doubt inevitable. However, bringing Magneto back only to drop him from the movie is...odd.
Ultimately, it's easy to now claim that cameos like these were shot and subsequently scrapped. Since news broke that Daniel Craig was originally eyed for the role of Mister Fantastic, it's been said that he was actually wanted for Balder (that person never mentioned Craig's connection to the movie prior to Deadline's Justin Kroll dropping the news). We know from past leaks that's actually a role Bruce Campbell shot before he was dropped from The Illuminati, so don't believe everything you read.
Hopefully, if these deleted scenes are real, they'll be confirmed or released somewhere down the line.