The diamond at Red Rolfe is being completely rebuilt, and, with a grandstand, dugouts, and a press box, will become part of Biondi Park. Press Release; Project page. Clark Companies and Gale Associates are the field consultants, and Lavallee Brensinger, designer of the gym renovation, is designing the grandstand. The project page has a perspective rendering available.
[Update 11.17.2012: Broken link to Clark fixed.]
[Update 07.12.2008: The plans page also includes a nice site plan (pdf), and Big Green Alert Blog has a post with an aerial perspective rendering and a view of the entrance gate.]