I still have my faintest of faint “recreated Original Versions as a bonus feature on the box set” hopes holding on.
Essentially - a Disney-created “despecialized edition.”
To me that’s about the only way the boxset would become a “must buy” for anyone. If there’s nothing exclusive, like the theatrical versions, then most people will be fine just having them to stream on D+.
This way, they can use 4K Star Wars to drive up D+ membership, and still have something left to help sell the boxset next year.