I'm beyond estatic about this release, FINALLY my favorite live action Disney movie get's the blu-ray treatment. Now the most important thing for me for this release is Disney going to give it the edition it trully deserves? I'm hoping they do this right, and that there's new interviews or an audio commentary from Angela.
The dubbing for the 25th Anniversary never bothered me, as I never notice it when I first watched it on TV and then on DVD. I guess I'm not the kinda of person who notices those things.
Ideally, they'd take the same approach as Blade Runner and present a box set of all extant versions, swimming in extras, doing whatever is possible to make the dubbing less jarring. If they don't want to do new extras, there's plenty of stuff in the archive they could include (when and why did isolated scores become a luxury only Twilight Time could afford?). They do need to go more in-depth into the history of the film. Even The Boys: The Sherman Brothers Story skirts around the reasons for the Sherman Brothers' departure from Disney; dropping a third of this film's score was definitely one of many reasons, but all we heard was "it just wasn't the same" as Miss Price sang the last verse of "The Age of Not Believing."
Realistically, I'd be surprised if they did go that far. The last DVD already dumbed down the extras and turned it into an ad for Wizards of Waverly Place. That's why the girl from that show did the special effects extra. Incidentally, whatever happened to any of the kids from this film?
They cut the Music Magic featurette in half, removing all the footage of Scott MacQueen, who no longer works for Disney, talking about the reconstruction. As far as I know, no additional scenes or sound elements for existing ones have been found since the reconstruction was completed.
One thing regarding the dubbing I will say in the studio's defense is that certain things were beyond their control. Tessie O'Shea died in 1995, just as they were starting to work on it. David Tomlinson apparently was not able to make it out to Hollywood due to health reasons. And there was no way to keep the children from getting older.