I'm surprised at this take, since so far AI has mainly reduced the cost of creating content similar to what already exists.
Just try browsing the most popular images from Midjourney and you'll see a lot of stuff that stands out, and these are the popular images that most people find acceptable. The iceberg goes much, much deeper when you dig into the galleries of individual creators.
https://www.midjourney.com/showcase/top/
https://www.deviantart.com/tag/midjourney?cursor=MTQwYWI2MjA...
However I’d guess the corporations would push really hard to own anything that “sounds like” the Beatles to prevent that.