Well, not really Mickey Mouse or Disney, but Lucasfilms:
As of now, the official Star Wars canon consists of the six existing movies and the recent Clone Wars TV series. “These stories are the immovable objects of Star Wars history, the characters and events to which all other tales must align,” explained the announcement on StarWars.com.
Most of the fanboys I think will stick with the original EU. My future-state prediction is that the original EU side will continue to release material while the Disney-fied version will start its own canon—maybe with installment with its own complimentary, non-film (TV series, books, comics, etc.) media.
So we’ll have two somewhat contiguous but separate canons, with the 6 original films and the TCW as their basis.
That sounds even more confusing than having Disney complicate the official, older canon.