Since you have put in so much to the audio tracks of your Star Wars ‘Revisited’ trilogy—using music from other ‘SW’ films and adding additional sound-effects, perhaps you should consider letting members access to the raw audio edits of your ‘Revisited’ Trilogy. A FLAC file would do fine.
There are non-English speaking members, here, who would love to enjoy your films in their own language. Because you have changed the length of the films, those members simply cannot replace an audio track with, even, the GOUT version. Having those raw audio tracks, a competent audio editor can do a separate language track of a ‘revisited’ film and share it with the community.
But the main reason why it may just be 5.1 is because i do not have any software that can encode DTS-MA let alone encode a 6.1 or 7.1 audio track. The DTS software suite is ridiculous price and now only seems to be available for Mac.
There are members, here, that have access to a DTS Master Suite software, so, if you allow access to those raw audio files, I am sure that those members will share them with the community. Some members have audio amplifiers that can play 5.1 channel FLAC files, so, even without a DTS audio track, they can enjoy the sound in high definition.