Walt Disney Legacy Collection announced by Walt Disney Studios Home... - Forum.
I've just heard from an insider at WDSHE that the Walt Disney Legacy Collection is finally becoming a reality!

There will be five sets released as part of the first wave: Mickey Mouse: The Black & White Years, Silly Symphonies, Dumbo (to coincide with the home media release of the live-action remake), Dateline: Disneyland, and for the first time ever on American home video, Song of the South. Each short, show, and movie will be meticulously restored from the original negatives in 4K high-resolution, and is accompanied by tons of extras, a booklet, and a SteelBook which also houses a poster, a lithograph, and a couple of other pack-ins. Each set will feature introductions by former Walt Disney Treasures host Leonard Maltin and many other Disney fans and aficionados.

April Fools!