Here's the page on the city website with the info, including a link to the actual RFP at the bottom. It seems a little less restrictive than the previous one, although not by too much. There are some restrictions that are made by an agreement with the nearby Grace Evangelical Free Church, and also this quote:
The City welcomes proposals that integrate office or residential uses into the proposed commercial development. Industrial uses, however, such as warehouses, automobile repair facilities, manufacturing or storage facilities are neither desired nor allowed within the Prairie Heights Neighborhood development.So I'm guessing the carwash that riled up some folks over in Bettendorf a while back need not apply either. I wonder about tatoo parlors... Seriously though, this should really be prime land someday, so I do like that the city doesn't just want it to become a junky strip mall or gas station. That said, the spec building across 53rd from the site doesn't seem to be filling up all that fast. It will be interesting to see what kind of proposals come in this time.