There is no official U.S. release of Aladdin on BD. I have seen screenshots of a Euro release and it looks pretty much identical to the Platinum Edition (except of course HD and with AR changes (some more cropping in some places, less in others)).
http://forum.blu-ray.com/showpost.php?s=576da8101a32b32c59a4fa0a9001358f&p=7264327&postcount=197
Coming from CAPS they probably just redumped the IMAX digital image to BD. I really don't expect there to be much difference. I doubt we'll see a return to the theatrical version, and unless they decide to go 3D I don't think we'll see any additional changes.
The Jungle Book diamond edition has a February 11 release date. I'll research that when the reviews come out. Being xerography era, I don't expect it to look very good, but you never know.