Based on previous reports and what we've seen in the trailers, The Marvels appears to be a relatively standalone story focusing on the three cosmically-powered heroes joining forces to combat a larger threat, but that threat may hold (literally) bigger ramifications for the MCU's future than we first realized.
During an interview with Total Film, executive producer Mary Livanos confirmed that the bangle in the villainous Dar-Benn's possession forms a pair with Kamala Khan's, and once combined, unlock a potentially universe Multiverse altering power.
"In Ms. Marvel, we learned that the bangle, paired with some other form of power, can force a temporary hole in space and time to lead to somewhere else," she explains. "With the power of both bangles, more is definitely possible. And we see the culmination of that over the course of this movie. It definitely leads to plentiful opportunities for the future of the MCU, whatever the Avengers and Secret Wars teams may want to do with them."
Could The Marvels directly lay the groundwork for the Multiversal events of Avengers: The Kang Dynasty and Secret Wars?
"The plot deals with some fluctuations in time and space, and there's definite danger afoot that could affect the multiverse". She continues, "Where it all leads is a bit of a spoiler, and exactly how it'll all pan out in an Avengers movie is currently being figured out right now. But we're definitely ending our characters in places that allow for plentiful opportunity."
As for director Nia DaCosta, while she has some ideas about what comes next, she's not sure exactly what Kevin Feige and co. have in store (or if she does, she's not saying).
"That's a question for [Marvel boss] Kevin Feige," said the filmmaker. "I have lots of thoughts. But I actually have no idea what they're going to do in the Avengers movies. I do know that those guys who are doing that watch the films, see what we're doing. I have things I really want [to happen]. But I'm not sure."
"In Marvel Studios’ The Marvels, Carol Danvers aka Captain Marvel has reclaimed her identity from the tyrannical Kree and taken revenge on the Supreme Intelligence. But unintended consequences see Carol shouldering the burden of a destabilized universe. When her duties send her to an anomalous wormhole linked to a Kree revolutionary, her powers become entangled with that of Jersey City super-fan Kamala Khan, aka Ms. Marvel, and Carol’s estranged niece, now S.A.B.E.R. astronaut Captain Monica Rambeau. Together, this unlikely trio must team up and learn to work in concert to save the universe as The Marvels.”
The film also stars Teyonah Parris, Iman Vellani, Samuel L. Jackson, Zawe Ashton and Park Seo-joon. Nia DaCosta directs, and Kevin Feige is the producer. Louis D’Esposito, Victoria Alonso, Mary Livanos and Matthew Jenkins serve as executive producers. The screenplay is by Megan McDonnell, Nia DaCosta, Elissa Karasik and Zeb Wells.
The Marvels hits U.S. theaters on November 10th, 2023.