Let’s be realistic for a moment. Harry Styles wrapped up a 22-month tour, Love On Tour, this past July, and his movie career seems to also be a priority after appearances in buzzy films like “My Policeman” and “Don’t Worry Darling.” Taylor Swift isn’t even halfway through her world-spanning, record-smashing Eras Tour as of this writing, and she was just nominated for six Grammy Awards (including one for album of the year, which would set a new record for Swift if she took home her fourth one). These two people, to put it lightly, are busy. While Swift could potentially pop up as Dazzler in a super-short appearance as a favor for her friend Ryan Reynolds — who gave a shout-out to Swift’s two cats in “Deadpool 2” — it would almost definitely be a one-off role. As for Styles, he might not want to sign on to a huge franchise for the next several years.
After the release of “The Marvels” set a new record low for the MCU, Kevin Feige would probably love to get stars like Styles and Swift on board for future projects … but it does seem like a big ask for either of them. In any case, he’d have to make sure they appear in very different projects after Swift’s re-release of “1989” spent all of its vault tracks dunking on Styles (the two stars dated in 2012).