A relatively reliable movie news website called Ain't It Cool News claims to have some scoop on the first stand-alone "Star Wars"flick.
This isn't part of the upcoming TRILOGY. As you may recall, Disney and Lucasfilm also announced some one-shot movies that would be within the "Star Wars" universe, but independent of the trilogy.
Basically, they can go wherever they want with these movies. And supposedly, the first one will be all about YODA. (--You can see video of Disney's Robert Iger talking about the stand-alone films here.)