Given how associated the name Columbine has became with the shooting and how the school has attracted unwanted Columbiners visiting (including shooter Alvaro Castillo and failed plotter Sol Pais), you'd they'dve by now shut down the school and replaced it with a new one with a different name, location, colors, mascot, etc. I know other places that were the sites of shootings got closed (i.e. the San Ysidro McDonald's and the Dunblane school)