Kevin Feige hints that Tom Holland's Spider-Man could appear in Sony's other Spider-verse films
“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.”
That small quote is a BIG hint that the MCU isn't the only film universe that Tom Holland's take on the character could appear in - and with Sony planning a Venom follow up and the newly announced Madame Web as part of the Spider-related slate there are already a couple of obvious places he could pop up.
Morbius writers Matt Sazama and Burk Sharpless are developing the Madame Web film and we also have various other Spider-Man related films at various stages of development including Kraven the Hunter which has gone a bit quiet and Black Cat and Silver Sable both heading up their own movies.
AND then we have the mooted Sinister Six movie AND the Into the Spider-Verse sequel so there's little doubt that Tom Holland could be in demand across eight potential films that will, or could be, appearing over the next few years. That's before we consider which other MCU appearances he's set to make.
There's every chance Tom Holland could become the most prolific Comic Book Movie actor ever at this rate.