dabest13 said:

... if it is indeed concealed that Anakin and Vader are one in the same, obviously the transformation scene would have never been seen.

Which would open things up for a much better "Birth of Vader" type scene. More spiritual and akin to a knighting ceremony than the scientific "operating table" scene that we DID get....

EDIT: Obviously Vader would already be partially in costume so that we have no idea that it is Anakin...and the knighting ceremony would just be Palpy formally giving him his Darth name....the "force lift" lowering of his helmet shroud (like in the painting) would be a nice touch though...