Before making a brief reappearance in The Marvels' post-credits cameo alongside Iman Vellani's Kamala Khan, Hailee Steinfeld made her MCU debut as Kate Bishop in the Disney+ Hawkeye series.
 
Although the Young Avengers project (now thought to be a Champions series) was made possible by the Captain Marvel sequel, there are rumors that at least some of the team's characters may appear in Avengers: Doomsday and/or Avengers: Secret Wars.  When asked if we'll see Kate Bishop in Avengers, Steinfeld seemed to nod when he was signing autographs at the Sinners movie' Mexican premiere.
 

Since Steinfeld might just be reacting to someone else in the crowd that we can't hear on this recording, we're not sure we believe this. We don't see her confirming it to a random guy shouting at her on the red carpet, even though Bishop will most likely make an appearance (more likely Secret Wars than Doomsday).
 
The recent MCU concept art leak included Bishop, Khan, Cassie Lang, and Billy & Tommy Maximoff (although The Russo Brothers have denied that this artwork had anything to do with the Avengers movies). According to MTTSH, Halle Berry has finalized her contract to reprise her role as Storm in Doomsday.
 

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