When I first watched the new clip, without the comparison video, I thought the third unit shot was not very well done - the motion and compositing looked unnatural and it didn’t look very detailed, as if it was out of focus.
It was only when seeing it alongside the original that I realized I had the wrong shot! The footage I had been looking at, of Vader walking away from the window and towards the camera was original footage and I suspect not much can be done for that without a complete re-shoot.
The actual third unit shot of Vader walking towards the bridge window was filmed and inserted so perfectly that I didn’t notice it was new.
Bravo!