I think the opposite. As even if George had made the Sequels back in the 80’s they would be vastly different to what Disney gave us.
Take into account two major bits:
“If the first trilogy is social and political and talks about how society evolves, Star Wars is more about personal growth and self realization, and the third deals with moral and philosophical problems… The sequel is about Jedi knighthood, justice, confrontation, and passing on what you have learned.”
A quote from George in the 80’s. He always viewed each trilogy as being different from the last but interconnected.
As well as this interview Mark Hamill did in the 80’s.
“It’s either going to be on another plane of existence, or not the same character. When you see the ending, you’ll see why it has to be the last one. Period."
George always seems to have seen each trilogy as being different and for that matter each film in the saga as a whole. He never settled for doing the same thrills and tricks twice. He always made each of his six films vastly different from the last. They may of had familiar elements but the context was always vastly different. Like the Death Star I and II. One represented Luke’s battle outwardly and the other represented Luke’s battle inwardly with his father.
As well as Mark talking about the saga as a whole ending on another plane of existence does make me wonder if early on George had vague notions of getting into more metaphysical subject matters as the Whills are some of the earliest least known or talked about lore. It’s vague enough on Mark’s part to not give too much away. It would be interesting to have someone ask him. He did talk a bit about how the Prequels we have are very much what he thought George described them as being back in the early days in Howard Kazanjian’s book. So I’m sure he at least had a broader sense of things as Mark says. Steven Spielberg and Rick McCallum also talked about this back in the 90’s.
“George always wanted to make nine. He wanted to make the first three. And he wanted to make the Prequels to that. Then he wanted to make the last three. And that was something that was part of his concept.”
“Rather or not George ever completes six of the nine part series or he actually ever ultimately completes the nine, it’s really nine parts of one film. It’s one big saga about a family that happens to live in a galaxy far, far away.”
Ultimately George never fell prey to giving fans exactly what they want. He always experimented and tried new things. Unfortunately many want Star Wars to be a romp and adventure series but it can be so much more as the Prequels proved. He decided to give these fans what they wanted by selling the company as he’d be sacrificing his principles as an artist making basically the same story all over again.