It's already happening. I almost joined a group that is connecting script writers with producers without going through the usual agenting channels. I may join them yet. But decentralization of the film industry has already begun.
I am a member of https://adimverse.com/, which attempting the same thing for creators of all kinds including film and script writers, novelists, and other storytellers.
Yep. They might be small now but they will start to grow in size. This is how disruption works.
It happens on the fringes first before really exploding.