Marvel fans were devastated this summer when it seemed that Tom Holland's Spider-Man would no longer be in the MCU. The rights to Spider-Man are owned by Sony, and it seemed like they couldn't make a deal with Disney, so it was announced that it was likely that Spider-man would no longer appear in the next Avengers film or be affiliated with the MCU in any way.
However, in an 11th hour deal, Sony and Disney were able to find a deal, with Disney and Marvel Studios getting 25% of the profits. Marvel head Kevin Feige released a statement saying:
"I am thrilled that Spidey’s journey in the MCU will continue, and I and all of us at Marvel Studios are very excited that we get to keep working on it. Spider-Man is a powerful icon and hero whose story crosses all ages and audiences around the globe. He also happens to be the only hero with the superpower to cross cinematic universes, so as Sony continues to develop their own Spidey-verse you never know what surprises the future might hold."