In only 30 years, SOUTHGLENN had outlived its (perceived) usefulness. A redevelopment plan was announced in 2004. The bulk of the mall would be razed and replaced by an open-air shopping venue.
Graphic from www.southglenn.com (Website on Internet Archive Wayback Machine)

A crowd gathered for a "Farewell Southglenn" celebration, which was held in February 2006.
Photo from http://www.centennialcolorado.com

A commemorative cake baked for the SOUTHGLENN send-off.
Photo from http://www.centennialcolorado.com