Sounds like a Star Wars land and Cars Land is about to come to DHS. About time if true. You can presently do that park in about 3 hours:
http://www.themeparkinsider.com/flume/201306/3524/
It's true. Disney transferred the person who ran the day-to-day construction of Cars Land in DCA to Orlando for the project. Lassiter is protective of Cars Land and DCA, but the 4-5 year window before Cars Land was duplicated in WDW seemed about right.
Cars is in my bottom tier of Pixar favorites, yet Cars Land I still found amazing. You really do feel like you've been transported to Radiator Springs. Radiator Springs Racers is one of favorite rides in all of the Disney universe.
I like DHS a bit more than most: I could spend three hours on just the right side of the park. That said, there's a lot of dead real estate between Star Tours and Pixar that can be repurposed for Cars Land and Star Wars stuff: the car stunt show is expensive for such a limited appeal, and the backlot tour is a dud. There's a couple other attractions that few would miss near there, too: the Honey I Shrunk The Kids playground goes unused by most parkgoers, the Muppetvision show has run its course, the Indiana Jones show frequently get shut down to run other events in the space, and even the American Idol theater will be stale during this makeover window.
The food choices in DCA Cars Land are fun: the food at Flo's was actually pretty good, and the "anything and everything in a cone" concept of Cozy Cone is wonderfully Disney if a bit impractical. I'd like to see DHS install an immersive Star Wars restaurant, like a Mos Eisley Cantina or a Bespin dining hall.