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.
If the above quote is from the “Icons: Intimate Portraits” book, then it is worth mentioning that George Lucas only refers to the possibility of there being Sequels as a vague notion in his mind.
In a 1997 issue of the “Star Wars Insider”, Lucas said “[The whole story has] six episodes…If I ever went beyond that, it would be something that was made up. I really don’t have any notion other than ‘Gee, it would be interesting to do Luke Skywalker later on.’ It wouldn’t be part of the main story, but a sequel to this thing.”
In a 1999 interview with “Vanity Fair”, Lucas denied ever having any plans to make nine “Star Wars” movies. “When you see it in six parts, you’ll understand”, Lucas said at the time. “It really ends at part six.”
There are more similar quotes from George. It really can be difficult to take George’s words as fact at times.
Maybe, at best Lucas’ quote of "I really don’t have any notion other than “Gee, it would be interesting to do Luke Skywalker later on.’ It wouldn’t be part of the main story, but a sequel to this thing.” has been incorrectly misconstrued as being his outline for his Sequel Trilogy? Because in Lucas’ own words they are not part of the main story, but may be an idea for a possible sequel or continuation of Luke’s own personal story.