Another rumor this time coming from making star wars
- George Lucas – George’s vision for the Sequel Trilogy was to take it right back to the beginning. Meaning, the beginning of the Jedi and Sith, how that came to be and how ancients forces were still influencing things. Luke was going to go on an adventure that would take him back to the origin of evil in the Galaxy. Some of these ideas have very much influenced the story.
- This seems alot more reasonable and pausable, intrestingly enough that last bit was something that was forshadowed twice in the Clone Wars and the beginning could stand for two things.
It was alluded to in the novels as well. The "rule of two Sith" was only for one branch of the Sith. There was another group of Sith sitting in the shadows, biding their time and manipulating events on a very galactic scale.
I don't feel like spoilering stuff from the Legacy EU anymore since it is not canon so beware of spoilers below!
Jason Solo, as Darth Caedeus, approaches a group of shadow Sith on Corriban to ask for assistance. They decline saying their time was not yet ready. This group turned out to be linked to a group of Sith who toppled the Galactic Republic in the last comic series called Legacy which I referred to before (took place 127 years after Return of the Jedi). I don't know how involved Lucas was in EU material but this shadow group of Sith could be part of what Lucas was moving towards. Maybe not to topple the Alliance, but surely to lead to some mayhem.
Even more relevant to what you stated above, there was the dark "Force Being" who possessed Calista (Lukes ex-girlfriend who lost her force powers and disappeared to find them...long story, look it up if you are curious). Luke and his son Ben hunted after this being when Luke was banished from the Republic for being blamed for Jason Solo's fall to the dark side. Jedi knights were being possessed and believing everyone was an enemy and going mad. Luke determines this force being was to blame and hunts her down.
Also yet again, in the same story as above, there is the lost tribe of the Sith who were stranded on a world for centuries until they rediscovered space flight with some help and slowly developed a secret armada to try and take back the galaxy.
So there could be any number of links to what we will see as the "ultimate evil" developed in the new series. I don't want it to get to spiritual because they tried that a few times in the books and I prefered it being Sith and Jedi with a few other sides and views. Origin of Evil is a bit much for a lighthearted space opera adventure.