My husband and I took the tour on May 18th at 3:15. Our tour included priority seating for the parade (great seats). We asked about the seating for the fireworks and were told they are now at the Main Street Train station. We were planning on watching the fireworks from that spot to avoid the hub crowds, and we saw the reserved spot on some benches right up in front. It's a pretty good spot, not as good as the hub, but less crowded - likely easier for them to save the seats.
I've been lurking here since Mice Chat opened and this is the first time I've had anything to add!