In the comics, the Avengers have a long list of reserve members who can step up and fill-in when the main, active-duty heroes are injured or simply need some time off. That's not yet quite the case in the MCU, and the team is currently without Captain America, Iron Man, Thor and Captain Marvel.
The latest TV spot for Spider-Man: Far From Home reveals that the new team Nick Fury is trying to put together is simply a continuation of the original Earth's Mightiest Heroes, and it seems Mysterio is the first individual who'll answer the call.
While most comic book fans are anticipating Quentin Beck to ultimately prove to be a villain, Kevin Feige and co. have proven in the past that they aren't afraid to use those expectations to deliver twists and surprises.
Whether Mysterio ultimately proves to be a good guy won't remain a secret for too much longer, as the social media embargo lifts on Far From Home tomorrow and the film will open on July 2.