I actually have a prediction that eventually, there will be enough scripts made that it will be possible to train a ML model to create scripts based on existing scripts.
You could categorize the ‘type’ of action that a video segment is “handjob, blowjob, titfuck, vaginal, anal, footjob” (there’s already an AI that has done basically this), and then have a series of models that you’ve trained on funscripts matching video segments of that type to estimate what the funscript position value should be for that frame.
Combined with some filtering and whatnot, I reckon you could get very acceptable funscripts with that kind of method! There might even be enough data to do something like that now. It would be so much work though 