junctionist
Senior Member
A builder is not going to want to build or maintain a public plaza like this, on this scale (and the city cannot force them to build one like this). Further, the developer(s) will want to build on every square inch of that property and will sacrifice height to do it (its cheaper to build out than up).
Developers leave open spaces like this one all the time, yet they're seldom designed to be that functional and typically on a smaller scale. Often, they're for some private garden, grand circular driveway, or obscure public park. Many developers care about making positive contribution to communities and will work with the city if the city wants something more significant in a given place. One can't rule out the possibility of such a space becoming a reality if the city sees it as a good idea. For the end result of the loss of a massive city block to be one just big development would be an unwelcome extension 1960s block-busting development.