Article: "[The next three 'Star Wars' films] were going to get into a microbiotic world," he told Cameron. "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."
Elsewhere in the conversation, Lucas admitted, "Everybody hated it in 'Phantom Menace' [when] we started talking about midi-chlorians." In terms of his storytelling, Lucas regarded individuals as "vehicles for the Whills to travel around in…And the conduit is the midi-chlorians. The midi-chlorians are the ones that communicate with the Whills. The Whills, in a general sense, they are the Force."
Lucas is confidant that had he kept his company, the Whills-focused films "would have been done. Of course, a lot of the fans would have hated it, just like they did 'Phantom Menace' and everything, but at least the whole story from beginning to end would be told."
Let's all just soak in this idea.