I forgot to look at one very important aspect, and that is the position of the text crawl compared to certain stars in the starfield. Based on this and by comparing Zombie's scan, and the scan of the DVD trailer frame, and viewing the EOD crawl frame by frame, the difference between the two scans in the original post could not be more than 2 frames (probably no more than one). The "Star Wars" logo on EOD has clearly disappeared at least 20 frames before this, but is still visible on the DVD trailer frame. Even with the age of the film, and a possibly incorrect black level for the video transfer, I doubt this would account for a difference in fade of more than 20 frames.
I forgot to look at one very important aspect, and that is the position of the text crawl compared to certain stars in the starfield. Based on this and by comparing Zombie's scan, and the scan of the DVD trailer frame, and viewing the EOD crawl frame by frame, the difference between the two scans in the original post could not be more than 2 frames (probably no more than one). The "Star Wars" logo on EOD has clearly disappeared at least 20 frames before this, but is still visible on the DVD trailer frame. Even with the age of the film, and a possibly incorrect black level for the video transfer, I doubt this would account for a difference in fade of more than 20 frames.