From Slashfilm: "The scene has completed visual effects and music because it was cut right before the final edit of the film was made during post production."
So I guess that puts to rest ideas that it was patched together recently then ;)
I love how until they come out and say, "Yes, this is 100% from the original production" people start coming up with every hairbrained theory they can to say it was shot new.
Waiting for someone to say that it is Hayden in the Vader armor AND playing Luke under the hood.
"That's not her toe, Dude. I guess its totally impossible to take somebody else's toe..." - Walter