I really don't know how to feel about this.
Lucas has done enough, and selling it to another interest seems good.
But, its as if his hand is still on one side of the tiller.
My main concerns are that episodes 7-8-9 , must needs to involve "The Skywalkers" and their progeny, and we all know how that turned out. About like the first 3 films.
Interesting, novel and cool to start, then building in intensity, only to somehow fall on its face. A good chunk of the EU, that might be reflected by a final trilogy is fraught with peril. Odds are that anything great from the EU will be perverted by the new effort anyway.
Second concern, is Disney, and the need for Star Wars to go back into the rougher, darker side of story telling, if it is to be revived in the hearts of the Legion of 1st gen. fans. For this, they have a ready made and unsullied well to draw from. The Old Republic. I just don't think that Lucas had the courage to explore this fully, and I certainly don't think the "Princess" franchise known as Disney will either.
The franchise is getting to be like Freddy Krueger, or Friday the 13th part ???, only with muppets. Just because you can, doesn't mean you should.