Here's my prediction: paraphrasing the catchphrase: idea is king The more high quality noise and spam will get produced by AI, the more valuable an original and solid idea will become. So with that said, perhaps the end of Hollywood won't come that soon after all.
Disclaimer: I love Hollywood, have a paid cinema subscription and watch things via streaming services, so you can consider me biased if you wish, but idea is the king is what I firmly believe in.