Let’s face it; the worst idea was to do prequels. They should have done sequels way earlier. Ford, Fisher, and Hamill would have been younger and more convincing as action heroes, and Lucas would probably have respected their input.
I doubt Lucas would’ve respected much of anything. An ST made in the '90s would’ve been preferable to the schlock we got in its place, but only if Lucas left the writing and directing to persons with actual talent and humility.