I know what you’re thinking, “but wait she already left didn’t she?”
Well not quite. It’s true, Black Widow was one of many superheroes tragically killed in Endgame, and it’s safe to say her death is permanent. However, Scarlett has at least one more MCU movie to make: her standalone prequel.
(That’s not the real poster, just something a fan made online)
We don’t know a whole lot about the movie, but we do know they’ve started filming and it’s set to star Scarlett, so they probably won’t be using a younger actress to play Black Widow.
But I guarantee that will be her last movie. Scarlett has had a long and glorious run in the MCU (longer than Chris Evans’ and even longer than Hemsworth’s) for now and this final standalone movie will be the perfect way to end it.
Now this movie could also be the last movie for Hawkeye, since he’ll probably have a cameo. But I think he’ll pop up in a few upcoming MCU movies.
So it’s safe to say the next actress to leave the MCU will be Scarlett Johansson.