It would be great to have a nine film box set of all three trilogies. The unfortunate truth is that the unaltered versions of the original trilogy will never be released (most likely something George Lucas made clear when selling his property to Disney in the contract). It would be nice is Lucasfilm color corrected the Special Editions to remove the color timing issues that were introduced in the original 2004 DVD release.
We don’t know for sure whether it’s true or not.