While we’re likely going to get an announcement in the near future concerning Ryan Reynolds returning to the role of Wade Wilson aka Deadpool in a third standalone film, things are a little less clear concerning the main X-Men team and how they’ll be introduced into the Marvel Cinematic Universe.
There have been assumptions that the Disney+ series WandaVision could help introduce mutants and the X-Men either via the Multiverse or her reality-bending powers.
New set photos from WandaVision have revealed the S.W.O.R.D. (S.H.I.E.L.D.’s cosmic counterpart) will be introduced in the series and likely will have a connection to Monica Rambeau (played Teyonah Parris) possibly seeing her become a version of Captain Marvel (like in the comics) or even Spectrum, the latter a member of The Ultimates (a superhero team expected to be used in the MCU in the future).
Adding S.W.O.R.D. would be the first time that Marvel Studios has added something from the 20th Century Fox side of the comics universe to the MCU. It might lead to other stuff from the Fox side being either introduced in the series or in Phase 4/Phase 5.
Another possibility of including S.W.O.R.D. is that the series might want to incorporate X-Men characters, locations, and mythology. The organization is from the pages of the X-Men comics (created by Joss Whedon) and their use might possibly telegraph more X-Men stuff is coming in the future.
One character from S.W.O.R.D. that makes a huge sense to join the MCU would be Doctor Hank McCoy, better known as original X-Men member Beast.
Hank is in a rare position in Marvel Comics, as he held ranks among both the X-Men and The Avengers (Scarlet Witch also coming from those two comic book worlds). He joined the Mightiest Heroes back in Avengers issue #137 from 1975 and first taking his more recognizable animalistic blue furry character design in the pages of Amazing Adventures #11 from 1972.
He also joined Sentient World Observation and Response Department aka S.W.O.R.D. alongside Abigail Brand (half-mutant/half-alien leader), Henry Peter Gyrich (originally a government liaison to the Avengers), a hacker alien named Sydren, X-Men’s alien dragon Lockheed (best known as being connected to Kitty Pryde), and Jessica Drew aka Spider-Woman.
From that standpoint, there is a good shot that Beast might be the first X-Men member to join the MCU depending on how they’re using S.W.O.R.D. and if the Multiverse will include a version of Earth where mutants are a pre-existing group aka homo superior being in the open as integrated into society/government (not in hiding).
Also, how S.W.O.R.D. might factor in future projects.
Could they show up in Captain Marvel 2 or in other Disney+ shows?
There had been speculation that the button scene from Spider-Man: Far From Home with the real Nick Fury on a space station surrounded by Skrulls was teasing both S.W.O.R.D. and Secret Invasion (although, Skrulls are seemingly the good guys in the MCU).
Space has been a close companion of the X-Men comics (not so much with the Singerverse of films) and that becoming the catalyst to their introduction wouldn’t be terribly shocking via S.W.O.R.D./Beast.
I also wouldn’t be shocked if Marvel used other space elements from the comics to connect X-Men characters to the MCU.
The mutant gene originates from the Celestials tinkering with the DNA of early man, which also led to the Eternals and Deviants being created by the cosmic giants. We’re assuming that a single line of dialogue could connect Eternals to Mutants via genetic tinkering or ancestry, but it remains to be seen if that connection will be explored.
Also, Cyclops aka Scott Summers’ father Corsair aka Christopher Summers just happens to be a space pirate and leads a cosmic team called The Spacejammers (not terribly different from the MCU’s version of Guardians of The Galaxy) and connected to the Shi’ar Empire, an alien group has a massive amount of characters, villains, and heroes that could be mined for decades.
Alex Summers aka Havok (Cyclops’ brother), Lorna Dane aka Polaris (Scarlet Witch’s half-sister/daughter of Magneto), and Rachel Summers aka Marvel Girl end up joining the ranks of Starjammers.
The third Summers brother is a cosmic superhero/villain named Gabriel Summers aka Vulcan, another character yet to be used in the feature films just like Corsair.
Having Starjammers and Shi’ar Empire being teased/introduced in future films like Captain Marvel 2 or Guardians of The Galaxy 3 wouldn’t be hard to imagine.
Kitty Pryde aka Shadowcat gets involved with the Guardians in the comics.
We’ve also heard from the Russo Brothers that they’re keen on bringing Wolverine to the movies and tackling Secret War.
Marvel’s chief creative officer Kevin Feige has said over the summer the X-Men movie doesn’t factor into their five-year plan and that seems to be echoed in the projects they’ve announced since San Diego Comic-Con.
However, Feige did give a shoutout to mutants during the Marvel presentation at San Diego Comic-Con and at CCXP 2019 in Sao Paulo, Brazil hyped-up the Scarlet Witch aspect of Wanda being highlighted in the upcoming Disney+ series WandaVision.
To me, these come off as tiny hints that mutants could be introduced first in WandaVision and if that is another universe that collides with the main MCU universe is likely going to be answered in the series or even the Doctor Strange sequel.
But, we’ll have to wait and see how Marvel will ultimately execute their mutants introduction.