Filmmaker and comic book writer Kevin Smith, in a recent podcast, shared a rumour that Matt Murdock (played by Charlie Cox) from Netflix's Daredevil will appear in the Marvel Cinematic Universe's Spider-Man 3. By night, Murdock is Daredevil, but by day, he is a lawyer, and Smith believes that this version of the character will be in the next Tom Holland-starrer. 

"Did you hear that Spider-Man 3, the new Spider-Man movie, is going to have a lawyer in it? Charlie Cox, they're bringing in as Matt Murdock," said Smith. When news reports emerged of his statement, the director tweeted, "Perspective: While I too hope this rumour is true, please remember that I only talked about it after I read about it on the Internet, just like everyone else. This means I have no inside info. Much like everybody else, I’m just a hopeful fan."

While Marvel is currently moving towards Phase 4, back in Phase 2 of the MCU, the TV side of Marvel launched various spinoffs from the main movie franchise, including Daredevil. After season 3, Daredevil was cancelled by Netflix, and reports indicated that the streaming service would retain control of the character for two years after the cancellation. Hence, it is unclear how Daredevil can appear in the next Spider-Man film.