Again, I don’t think it was ever plan. It was a test and proof of concept for the prequels.
You know Lucas got a hard on thinking of putting more CGI in the Original Trilogy. I’m shocked he didn’t replace Nein Nunb with Jar Jar in Jedi. Or alter Vader’s dialog to change “Obi-Wan once thought as you do” to “Padme, your mother, once thought as you do.”