Fully-automated driver isn't going to happen. For that, you need some kind of evacuation platform the length of the track. Since they're planning to reuse the same beamway, that's out of the question.
Both things wouldn't be a bad idea, though. Driverless trains are neat and Disney's evacuation plan on the trains is laughable if they haven't changed since the old WDW Monorail FAQ that was originally posted over a decade ago. I can't see how they could have changed. I guess Disney likes the vulnerable feeling you get from travelling in the sky without the steel platform bolted on the roadway just outside the door, but I wouldn't want to be a wheelchair-bound Guest in a fire.