There's a website - http://www.marlinsnewballpark.com that gives *some* additional details about the park, and more renderings.
I looked and there is a field drawn on the sketch, so I suppose that's there. But those buildings are all parking garages.
I can only imagine how hard or easy it will be to get in or out of the area, how much it will cost to park there, and worst of all...in looking at the sketches, it sure looks like there are a lot of luxury amenities there, and few what I would call affordable seats for the average Joe the Plumber. Or Jose el plumero.
But "its beautiful" says the guy who owns the team...