Hard to say, I think Disney are doing all the films we havent got in UHD mainly for streaming but again I have seen it mentioned that disks will come out.
I suspect T2 being DNRed to shit may sadly have been down to Cameron who seems to loath film grain. It must have been noticed that disk hasnt sold well though, thats the difference today your dealing with a more specialist market more aware of a releases quality.
The big releases I spose are still a bit inbetween as they do target less hardcore buyers as well even on UHD and I do kind of expect them to have been messed around with a bit more as a result. The original Starwars films and LOTR for example I felt were "ok" in that respect, some DNR but not to the degree you had constant plastic faces.
Will be interesting to see how the Indy films turn out when their released in a few weeks.