Hopefully, if they do this (eventually they will), the color grading will be decent and not blue or green as seems to magically happen with blurays.
Even if I end up preferring Harmy's version due to some foulup in a Disney release, I'll be buying it to support something that should have been done long ago.
PS: Off topic, but does anyone know *why* blurays end up with funky color grading? It's not a result of the transfer, is it? Is it just an attempt to make things look more "modern"?