The video is of his head and it's realistic, like an HD projection. It doesn't look like a ghost or something ghoulish. The lighting just doesn't match with the interior of an otherwise dark cave. There's nothing ominous about it. His dialog is one sentence quips that tell you nothing. And he disappears and reappears in a very mechanical way. I don't know why this is being called a cool effect, because in reality it blows. I liked the changes for the most part, but this was utterly dreadful, stupid and pointless.
We were told that Jones would move the story forward and be ominous just as the disembodied voice was in the original sequence. He does not and is not.