Source: http://arstechnica.com/gadgets/2014/01/o...

Word began trickling out over Twitter last week that Disney will be drastically redefining the state of the Star Wars lore, eliminating the bifurcated mainline/EU arrangement and in its place constructing a single official canon. All things that are part of the canon are "real," as far as Star Wars is concerned; all things not in the canon are "not real." This eliminates the quasi-real EU tier—going forward, things will either exist officially, or not at all.

Lucasfilm employee Leland Chee, who currently maintains the internal Lucasfilm database that tracks the different elements of the canon, will be one of the folks making this decision. He tweetedthat "Star Wars Canon is now determined by the Lucasfilm Story Group," which he and fellow Lucasfilm employee Pablo Hidalgo are part of. When asked specifically whether the group's goal was to eliminate the mainline/EU canon arrangement and its tiers of official-ness, Chee respondedwith a definitive yes. "More so than ever," he said, "the canon field will serve us internally simply for classification rather than setting hierarchy."

Now, no longer will there be a complex multi-level hierarchy of canonicity—there will simply be canon, and not.