The same thing will likely be true of raw files, as we get better (and probably machine-learning based) algorithms for decoding those into standard image formats. I wonder what fraction of projects currently preserve their raw files?
I'd guess(?) that you might be able to do more information reconstruction from analog + lense parameters + film parameters than digital + lense parameters?
Simply by virtue of digital being quantitized at some point.
(But signal processing is far outside my area of expertise, so honestly curious)