I'm not a lawyer, nor very well versed in the vast world of licenses and their definitions in court contexts, but I've been wondering about something with the g

I'm not a lawyer, nor very well versed in the vast world of licenses and their definitions in court contexts, but I've been wondering about something with the growing appeal ML-generated content has for the average person (and the "high" barrier for entry in the market) — are licenses in some form or another going to adapt to this phenomenon? From a brief search, I have not found any new license with a no-dataset-usage clause (assuming fair use does not apply, that's another big question). What are the chances anything of the sort will become an option for any "creative" work that's usually shared freely (such as artwork, code, et cetera) even despite copyright? What about the ownership of the dataset? It seemed to be questionable years ago already that possibly IP-protected content goes through the black box and resembling material gets on the other side, whose ownership is it really? I'm guessing some notable court cases in the future could define this in the following years if the popularity continues growing.