Here's Mark Hamill talking about the current, failing, fly-by-the-seat-of-your-pants plans:
Lucas' plan for the Sequel Trilogy wasn't entirely fleshed out, Hamill explained to IGN.
The actor said that Lucas had an overall outline for the movies, which differs from the way Disney has been operating, passing on the baton from director to director.
Said Hamill:
George had an overall arc – if he didn't have all the details, he had sort of an overall feel for where the [Sequel Trilogy was] going – but this one's more like a relay race. You run and hand the torch off to the next guy, he picks it up and goes.
Ryan didn't write what happens in 9 – he was going to hand it off to, originally, Colin Trevorrow and now J.J. [...] It's an ever-evolving, living, breathing thing. Whoever's onboard gets to play with the life-size action figures that we all are.
https://www.denofgeek.com/us/movies/star-wars/272061/star-wars-episode-9-george-lucas-version
These are the words of a guy on the "inside" of this thing, somebody collecting a paycheck. If anything, he's being kind to the people paying his salary.