I have some of these hanging around my back patio for bbqs and its awesome. Makes the backyard look amazing, even when it was a mess from construction.
The best attractions are rarely the new ones, but if you've got your heart set on what's new, then perhaps the Seven Mine Dwarfs Train would be up your alley? It's brand new - actually, it has yet to open, so you can plan in advance - and has a good reputation, from what rumors have leaked. Under the Sea: Journey of the Little Mermaid, while not a new as Seven, is perfect for the age range.