Although being the official site, its not exactly impartial, and they have been known to rewrite star wars history on occasion, as per Lucas' revisionist whims.
The only alternate(ish) ending I've seen for Jedi is a roughcut of the 1997 Special Edition changes, consisting of the original ending footage intercut with storyboards for new shots of the planets celebrating, set to what sounded like an early version of John Williams 1997 SE end celebration music. No exploding Falcons though
