Looks like they are finally going to reconstruct the Iowa State Center courtyard, long overdue imo. Anyways here are some plans i stumbled upon, looks like they are going to be taking out most of the elevated walkways (probably a good idea due to reconstruction costs and future maintenance costs.
Link: https://www.fpm.iastate.edu/planning/masterplan/isc_courtyard.pdf
Link: https://www.fpm.iastate.edu/planning/masterplan/isc_courtyard.pdf