According to the interview, the three movies would have centred on something established during the ill received prequels, midi-chlorians. Established during the Phantom Menace, the microscopic life forms were said to live everywhere and within everyone: yet, Anakin had the highest count of midi-chlorians that Qui-Gon Jinn had ever seen.
“Everyone hated it in Phantom Menace [when] we started to talk about midi-chlorians,” Lucas tells Cameron, who conducts the interview. “There’s a whole aspect to that movie that is about symbiotic relationships. To make you look and see that we aren’t the boss. That there’s an ecosystem.”
And how would that have related to the sequels? “[The next three Star Warsfilms] were going to get into a microbiotic world,” he continues. ”But there’s this world of creatures that operate differently than we do. I call them the Whills. And the Whills are the ones who actually control the universe. They feed off the Force.”...