Thanks for the link, interesting discussion, but what do you think?
My personal opinion is that deleted scenes sitting on a DVD listed as "Deleted scenes" are not canon, but if at a later stage they are integrated into the actual episode, they become canon.
I'm not sure about the canonicity of scenes that appear in one version but then are deleted in a "director's cut".
And what about stuff like "Blade Runner", where there will be (is?) a third version. What really happened in that movie (no spoilers please).
Did Greedo really shoot first?