Exactly.
It’s not that Disney doesn’t want to share any profits at all with Fox. It’s that they don’t want to share the sudden spike in profits that would come with a 4k/OOT release.
That doesn’t make any sense though. If that were the case, that wouldn’t stop them from working on such a release at the present time, which they aren’t. It can take years for a restoration on this scale to be finished, and if they aren’t going to sell it until 2020 anyway, there’s no reason for them not to get a head start on it now if that was there intent.
How long did the Coppola Restoration of Godfather I&II take?
Even if they didn’t start working on it until 2018, two years seems like a long enough time.