If Lucas hadn’t decided to put SW on hiatus after ROTJ, if he’d decided to immediately go forward with a PT & ST (in whichever order), without deviating from the “new-SW-film-every-three-years” formula, we’d have gotten nine SW films within a 24-year stretch.

TRILOGY I

1977
1980
1983

TRILOGY II

1986
1989
1992

TRILOGY III

1995
1998
2001

Have to say, I’m disappointed this didn’t pan out. It would’ve been nice to have gotten three SW films in the '90s instead of just one.