What happened to Project Keystone?

In 2009, there was news that a facility for processing national intelligence would be built in Aurora.

A Virginia company is developing a 350,000-square-foot office building on 64 acres in Aurora for the federal government. The Peterson Cos. is expected to break ground in March on Project Keystone, which will be occupied by the Aerospace Data Facility Colorado, the largest tenant at Buckley Air Force Base. “We’re out of space at our facility,” said Sharlene Fairbanks-Kyte, public- affairs officer for the agency. “Project Keystone is to augment ADF Colorado.” The site within Gateway Park is bounded by North Walden Street, East 40th Avenue and North Salida Street. The Peterson Cos. purchased the ground from the Pauls Corp. Under an agreement reached in April, Peterson will lease the building to the Office of Director of National Intelligence. The National Reconnaissance Office will act as the executive agent for the project, which will be occupied by ADF Colorado.
http://www.denverpost.com/2009/09/10/aurora-to-get-a-new-federal-facility/

This was basically an extension of Buckley Air Force Base.  This project was obviously cancelled but I can't find out any more information about what happened.  There was a whole environmental assessment done called "Construction and Operation of Project Keystone, Denver: Environmental Assessment", which is available for free in Google Books.