These tools are still packaged in relatively inaccessible environments (such as Blender and AfterEffects and others.)
But, that’s changing too.
In short, it’s going to become increasingly tempting to a creative type to ditch the book he’s writing and, instead, make a movie.
Sounds silly.
But, what occurred in the musical realm (where rank amateurs can simulate an entire orchestra on their PC if need be) is going to happen with Movies.
Books — as a vehicle for drama — may not be coming back.