From Mike's 4k image and other sources I've seen, it's quite apparent that the stars definitely were very big and bright in the original releases, and I absolutely love seeing it presented this way at last.
It's equally apparent that the pan and flyby will have to be re-done in order to keep a consistent continuity in the stars' brightness level. As it is, the cut between sources is instantly noticeable and the much dimmer stars look bad in comparison. This is not a subtle problem.