You're right that a 4k or 8k scan would be an ideal basis for future releases. However, Ep. 2-3 for originally shot in 1080p, so even a 2k scan is out of the question, let alone 4k or 8k. Moreover, while a 4k or 8k scan of Ep. 4-6 would theoretically be possible, the SE enhancements were scanned in at 1080p, so again 4k or 8k scans are precluded since the quality difference between the original footage and the new enhancements would be jarringly noticeable.

One wonders, when faced with this data, why George seems so hell-bent on sabotaging his own movies...even the ones he apparently likes.