I wonder if they're too late ?
There is a niche for having Carrie Fischer or Peter Cushing cameo in a Star Wars movie, but going forward why would I bother having an actual "star"?
I hire a model as the basis of the 'face', or given how much AI filtering is already added to model head shots, I don't bother with a human at all.
I have their movement captured by a dancer / acrobat / etc - I don't need Andy Serkis for most roles - I can re-render them for different culture markets..
Background 'artistes' I can already render on my desktop.
So the next Milli-Vanilli, I can just get the video stars from Adobe, without having to hire a couple of idiots.
lose having a "star" to do the red carpet - but I have a star that can be interviewed simultaneously in a dozen markets, and doesn't need to fly 1st class.
And I don't have to delete an entire children's TV series when the star gets caught doing children's TV presenter stuff.