Unreleased MLP Special Caps

These are screen captures from an unreleased MLP special which would have been about the rainbow maned ponies. It would also have had Firefly, Medley, and the rest of the "Midnight Castle" cast return. 'Tis a shame this was never released.
Why it was never released was simple: parents complained about "Midnight Castle" being too dark, so they made "Escape from Catrina", instead. Yeah...because "My Little Pony vs. The Violent Drug Addict" was so much cleaner.
As for why it got as far as being advertised is a mystery, however.

EDIT: Courtesy of Faerie-StarV, here is the original video: [link]