LucasFilm president Kathleen Kennedy went on a podcast during Star Wars Celebration 2017, and was asked about the potential for a release of the Unaltered Original Trilogy. She replied: "“I wouldn’t touch those, are you kidding me? [laughs] Those will always remain his (George Lucas).”
Edit by moderator: For the purpose of clarity - Kathleen Kennedy was talking about not changing the last version of the Special Edition of the Original Trilogy any further. She was NOT referring to the unaltered theatrical version of the Original Trilogy.
This article, for example, gives a more accurate representation of what she said - and was pertaining to:-
https://heroichollywood.com/kennedy-lucasfilm-star-wars-original
‘Kennedy confirmed there is no actual agreement to keep the trilogy in its current form but when probed further about whether or not Lucas’ final cut of the original trilogy would be altered over time Kennedy assured that is something that will not happen’.
For additional information…
The full audio interview of the ‘Steele Wars Podcast’, conducted in a media line event for ‘The Last Jedi’ at Celebration 2017, can be found below. The section with Kathleen Kennedy starts at 12m 45s:-
https://omny.fm/shows/steele-wars/ep-131-3-star-wars-celebration-orlando-day-2-the-l (21 minutes long)
^ the above link unfortunately no long functions - an alternative link can be found here:-
http://steelewars.com/the_last_jedi_cast_interviews
The relevant section of the interview is at 15m 32s…
Interviewer: “A lot has been said about the pass over to Disney, but Star Wars is film of changes… it has evolved over time. Uh, is there like, a contractual or a handshake agreement that the films are locked in their current form?”.
Kathleen Kennedy: “No, there is no-one actually locking us into anything. In fact, the beauty of this relationship with The Walt Disney Company is they have been absolutely fantastic at standing back and pretty much letting us do what we want.”
Interviewer: “Sorry, I mean like the… the vision of George’s final cut of the film that he left us with? Like whether that might be altered over time?”
Kathleen Kennedy: “… (pauses)… You mean the themes and ideas in the six movies he has made?”
Interviewer: “Just the Edits… he has changed over time… like the Special Editions and that sort of thing…”
Kathleen Kennedy: “Oh! I haven’t touched those. (both interviewer and Kathleen Kennedy laugh) You kidding? Those will always remain his.”
^ Mod Edit: the above interview with Kathleen Kennedy can also be found here - on youtube:-
https://www.youtube.com/watch?v=_ZO0_yYvmxo (at 2 mins 50 secs) - from the ‘Steele Wars’ youtube channel.