Okay… But at least the overall quality will still be better.
Yes, almost certainly. Disney animations don’t contain the same level of detail as live-action, they were produced at 2K (2048x1080) and cropped from 1.66:1 to 1.85:1 on film (as per the pics). So I wouldn’t expect to find any more detail than already exists on bluray, at least in terms of luminance, but the chroma detail will be better whereas the BD is already at 8bits per channel - which means they’re crushed and that could prove a problem when regrading. As for grain - I’ve seen BATB, Aladdin and Lion King all projected from 35mm in a cinema and I can tell you the grain is fainter than you’d see on a scan. So in terms of graininess I actually agree the BD is better because it has no grain.
But look with all that said, I expect you could do a de-specialized, I’m just feel you’ll need more 35mm content then you might think! As mentioned, once we get this scanned you’re welcome to a 4K copy for the price of a HDD and you can knock yourself out with whatever projects you like - I don’t mind! You can regrade the scan to something entirely different if that’s to your taste. 😃