They'll build another shopping center with a few tallish buildings on them for residency+offices and a community center as well so I think they might reuse stuff? im not sure how it works
A lot of that stuff could be reused. Tempered sheet glass that size is very expensive. It's not worth much any more but that's not the point, someone could and should use it. Repairing and reusing materials is labour intensive and expensive, that's why builders don't do it, until we insist they do it.
There used to be an airsoft company that would do this. Sadly, they got sued into oblivion because it turned out they never actually got the proper waivers or permitting or insurance - they were telling everyone that they were filming a documentary or something.