As of yet, I don’t think any new releases are improvements outside of the 4k versions of Snow White and Cinderella.

I don’t believe any other ink and paint animation have had new transfers. Pre-4k CG is just upscaled maybe with some HDR color improvements. Anything recent has a 4k source, so I don’t believe any are badly messed up (except maybe Incredibles 2, but that’s Pixar).
I’ve yet to find any reason to make an update to the first posts.

I’m open to suggestions though.