The Marvel Cinematic Universe is coming up on its 10 year anniversary, and while that’s a happy occasion, fans know that exits are inevitable. Ten years is a long time for an actor to play a character, and “Avengers: Infinity War” and “Avengers 4” may be the final adventures for some longtime superheroes.

Chris Hemsworth’s Thor and Scarlett Johansson’s Black Widow have both been around for most of the past decade, and in a new interview with Vanity Fair, both seemed to hint that the end was coming.

Hemsworth told the magazine that he knew the cover photo shoot would be one of the last times the cast would be together on a set, which certainly makes it seem like someone is leaving. “I thought, Could somebody take a photo of this? We’re all aware that this is going to be the last time we get to hang out like this,” he said.

Johansson, who started playing Black Widow in “Iron Man 2,” noted that she had a “bittersweet” feeling about the MCU’s big changes. “I feel a lot of joy for the next generation,” Johansson said. “It’s a bittersweet feeling, but a positive one.”

Black Widow “Avengers 4” star Scarlett Johansson teased that a different generation of Marvel superheroes would step forward soon. Photo: Marvel

Neither actor has confirmed that they are leaving, and it’s entirely possible that they’re referencing the exits of other veterans. Robert Downey Jr., who plays Iron Man, and Captain America actor Chris Evans have been the subject of most rumors about exits. However, as previously reported, both have been vague about when exactly they plan to leave the Marvel movies.

The Vanity Fair cover story emphasizes that there will be actors leaving and likely some superheroes dying. Marvel Studios president Kevin Feige also referred to “Avengers 4” as “a finale.”

Of course, the studio will keep producing superhero movies with new characters. “There will be two distinct periods. Everything before ‘Avengers 4’ and everything after. I know it will not be in ways people are expecting,” Feige teased.

Fans can still look forward to at least a couple films featuring the longtime heroes. “Avengers: Infinity War” is due out on May 4. “Avengers 4,” which has a subtitle that is too spoiler-y for the studio to reveal just yet, will be out in spring 2019.