From what I've heard, it's Autopia that's going away. Today they are going to announce the Star Wars expansion for the park, Star Wars movies till 2021, and AND!!!!!!!! DUCKTALES IS BACK!
....from what I've hearrrrrrrd!
Just to throw it out there, I used to work at Disneyland. I've been up close to the firework launch area and I've helped clean Toon Town after the fireworks are over. Make no mistake; they close Toon Town at 8:30 for a good reason. That place gets wrecked some nights, wind is of course a factor. A small fire starting backstage is not out of the ordinary, they don't let non-essential Cast Members get anywhere close to the area while the show is happening, and they don't even let Cast park cars on the top floor of the parking structure back there past a certain time. They would have to DRASTICALLY change how the fireworks show happens for them to build Star Wars back there. They ain't going to do that because they have near perfect framing behind the castle. I believe people would have a fit if they closed Star Wars every day at 8:30.
Another thing is Star Tours. I highly doubt they want to build Star Wars far away from the other Star Wars ride. I guess Disney could come up with some story line where they explicitly say that Star Tours is some spaceport that takes off from Disneyland, while Star Wars is on... I dunno the Endor Moon or something. I can't see two separate Future areas featuring Star Wars being in the park. Imagine the confusion to first time guests.