At this point there's probably no reason to. To many people's surprise the Orlando unit turned out to be amazingly productive and effective, but Humpty Dumpty is broken now and can't be put back together. So no, I doubt if it will happen.
Why? They're not going to bring back all of the cell painters, etc. that they needed for hand-drawn animation. And aren't they creating new facilities in CA already for the "Pixar Exploitation Unit"? Seems like the only reason to go back to FL would be to have the animation attraction in the Studios again.