Has anyone suggested that Disney might put out a regular Blu-ray (of either the OUT or a new master of the SE) this year and then a UHD release after 2020? They’d be able to cash in on the anniversary and have something exclusive for when Fox’s distribution deal runs out. Plus the ST will be complete by then, so it could be box set city.
That’s been a big theory of mine as well.
The timing is certainly right. They could get away with it being a 1080p-only release this year, for the 40th. Next year, not so much. But I would still hope the unaltered trilogy eventually makes it to the 4k disc format as well.