People would have been bored out of their minds watching Luke train Younglings, Leia sitting behind a desk signing bills as Chancellor of the republic, or Han training pilots for the new republic academy.
That is most likely what would have happened in Lucas sequels.
Naw ruining characters doesn’t make a good story Rian.
What does RJ have to do with any of this? You may not have liked the direction he took the characters, but you gotta admit that a boring, relatively conflict-free sequel trilogy would not be good either.
Or you know just adapt the respectful Thrawn Trilogy and not ruin original characters just to introduce new ones.