Deluge is hashing the iso for Cinderella, it will be back seeding in a couple minutes.
I confirm, seeding has started for Cinderella
Maybe, though it would be complicated if Disney tweaked individual elements on the BD (not sure if they did). Also, fyi, the '87 LD is far more cropped than the BD, so I don't think you could directly overlay the color (if that sort of process is possible). Fun fact though: the Pinnochio LD still has reel change markers. It's wonderful.
Disney's butchery goes far beyond than colour tweaking and grain smoothing, unfortunately. What they're doing with those classics can't be called a restauration (for the BR, at least) and I'm not sure that the LD can be trusted either.