This is sad news. I guess I can kiss dreams of seeing ever a Tie Fighter remake/reboot goodbye.
Don't give up hope. Disney is actually pretty good about licensing out their properties for people to make games. It's possible they do have some long-term projects in mind with LucasArts properties.
On the other hand they could only be interested in Angry Birds Star Wars...
Time will tell, but what we internet dwellers can do is make our case to Disney to let developers do justice to SW and other LucasArts brands, and to make those older games available in places like GOG.