On the "showcase all of IofA" and "the two Zax" questions, sorry, wish I'd asked more questions when I had the chance! My impression was the ride was going to somehow show off parts of the park. He mentioned that some of the track goes close to and over part of the water, so maybe he meant the cars would have a speaker system describing the sights? On the Zax, yes of course it's a reference to the Dr Suess story. The Zax WERE in place when they originally built the park, according to my source, but I've no idea where, I've never seen them. Anyone else have an idea? I remember the guy seemed pretty excited about having the Zax viewable by the public soon.
When we were there last, we did try to follow the tracks as much as possible. The green eggs and ham snack bar was closed, and we were able to go to the back of the outdoor dining area near it and lean back around the barrier to have a peek. I'm thinking there might also be a good long-distance view from behind Mythos in the lost Continent area.
The tracks enter/exit the pavillion behind Circus-McGirkus at four points, but it's unclear whether the new ride will have two parallel tracks or one very long track.