Lucas announced the Blu-Ray Saga at Celebration. The OT in 4K would be a big deal for a lot of folks, regardless of whether the OUT is included.
You may be right about a 4K release, though. Now that The Last Jedi and Solo have a 4K Blu-ray release, it would make sense to do the same for I-VII and Rogue One. We’ll see what happens. On a sad note, I hate hearing about this, but it seems like physical media is coming to an end soon. I hope it doesn’t die, but part of believes it will. Samsung just announced that they’re discontinuing their Blu-ray players not long ago.