User blog comment:Brandon Rhea/THE CHOSEN ONE: Chapter Two release/@comment-430421-20090217020434

Well, despite the (planned) mention of the Shaman of the Whills in ROTS and Lucas's comment to McCallum about the films being told from R2-D2's point of view, I've always thought that Lucas views the Whills/Journal of the Whills as merely cut content.

"Originally, I was trying to have the story be told by somebody else; there was somebody watching this whole story and recording it, somebody probably wiser than the mortal players in the actual events. I eventually dropped this idea, and the concept behind the Whills turned into the Force. But the Whills became part of this massive amount of notes, quotes, background information that I used for the scripts; the stories were actually taken from the 'Journal of the Whills'." - GL

From this, it sounds more like he's saying he took just some elements from the Journal of the Whills as if it was the first draft, and not actually "existing" in canon. Not something acting like the fall of the Republic being source material for ANH. But I digress, as I don't know much about the subject and this is an alternate universe.