Another option would be to leave it vague and allow people to come to their own conclusions.
“Leia had sensed the end of her Jedi path. She surrendered her saber to me and said that one day, she would finish her journey.”
But maybe that wouldn’t be a satisfying answer. You could also have the original on the “no AI lines” audio track, and the new explanation on the alternate one.
This is pretty much how it is in v3. But I’ve literally had a first time viewer tell me that this is really unsatisfying to hear, and I didn’t plant that in his head at all!
I agree, perhaps leave it as v3 in the alternate track, and use the new lines I made for the main track.