For those that haven't seen the renderings of the new park in Miami, IMHO, they're in for a treat.
First, here are some of the renderings:
Now, here is a link to a panoramic webcam of the park in its current state:
Though it's hard to tell immediately, it has a retractable roof. The left field background, as it appears now, will be a complete glass structure that will have a Miami skyline view from off in the distance.
The backstop on either side of the dugout will be a large bulletproof glass saltwater aquarium.
I have been very excited about this park since it was announced. I think it's going to be a treasure.