Nope, it was widescreen only, a rare case of a Disney or BV title not being available in fullscreen the first time around. There is also nothing available on other Region releases which could be included, unless they wanted to include the 19 deleted or extended scenes into the film. They run...
A third disc being a full screen version is possible. Seeing as how this film was geared towards family friendly audiences and younger crowds, many who are not familiar with the benefits of widescreen. A three disc set with a fullscreen version would be a waste of time and money and completely...
It would seem unlikely they would do a whole new transfer for w film that came out last year in theaters and on DVD. If anything, perhaps limit the quantity of commentaries or audio tracks, but who knows. It will be the same transfer no doubt, which I'm satisfied with.