They most definitely work closely with Disney, but the rights to Star Wars the Miniatures Game hasn't expired. They are pretty clear that they are not allowed to sell items as a Star Wars Miniatures Game. In fact, Imperial Assult wasn't even being sold by FFG at GenCon for undisclosed reasons. They dodged that question a few times during their press event. They had a different company selling it next to them.
GW and FFG go way back, so i'm not suggesting they have a bad relationship. Blood Bowl manager was good card drafting. I could really get into WH:Quest card game if it works. I've been trying to get into the Co-op LOTR game with my gf, but it's ridiculously complicated to start. 7-8 phases per round is ridiculous.
While we are on the topic of GW, how much longer can 40k support this company? They've dropped support for all speciality games over a year ago. They killed WH: Fantasy entirely. Age of Sigmar = 40k looking fantasy mini's, and a joke of a rulebook. Sigmar has been a joke of the mini community for the last month, and I dont see that changing. They make quality mini's, but I don't know anyone that is happy with GW as a company. I'm focusing entirely on Mantic, just like most of ex-GW gamers.