Miles Morales? I hope so. I know that in the alternate comics, Miles takes Peter Parker's place as Spider-Man after his death, but in the MCU, I'd like to see it where Miles becomes Peter's sidekick.
I think that there will be two spider man trilogies in the MCU, one where Peter Parker is the protagonist and one where Miles Morales is the protagonist and Peter Parker is the mentor. Tom Holland can only be so young for so long, and he probably doesn't want his career to be defined by being spider man, so the torch must be passed eventually
I also very much like the idea of Morales being the metaphorical grandchild of Tony Stark, after being mentored by Peter who was mentored by Tony