While I do not have access to the edit, I did watch the opening provided in the link. That was very impressive. I really liked the transition from the deleted Vader scene reaching out to Luke through Luke constructing the lightsaber.

It goes without saying that moving the Dagobah portions of the movie to the beginning is much better as well so at least we infer there is more training involved instead of the shotgun approach of the original.

I am not sure how the removal of the sibling connection looks like because I obviously do not have the edit, but it is curious to see how it works when that is removed.