Another thing I was thinking in regards to 2020:

With the Avatar sequels set to at least slightly renew some interest in the 3D format, I wonder if Lucasfilm/Disney/Fox will release a stereo conversion of the OT during that stretch of time.

Apparently the first two sequels will be released during December of 2020 and 2021 (scratch what I said earlier about Star Wars possibly moving back to December for 2020 because that ain’t happening), then the latter two sequels will be released in 2024 and 2025.

I could totally see them planning an OT/Saga 3D release for 2022 and putting together a trailer to put in front of Avatar 3 in December of '21.