I think the EU carousel is going to hit that spot. I think another hub 
spinner that uses the lighting on the trains along with a fancy glass building would add a lot to that area of the park. Theme it to meteorites or something and you'll have a beautiful experience.
See the Battery Park carousel at night, the inspiration for the EU carousel.
Epic also has 
two, so having a third is not bad. Hell, MK has three flat rides 
and they're the exact same ride type.