[r18tdi]

Sounds like this one is still alive:

https://www.chicagobusiness.com/comm...ic-development

Chicago developer John Murphy could provide the next local test case for office skyscrapers. He’s planning a pair of 50-plus-story towers at 301 and 321 S. Wacker Drive, just south of Willis Tower.

Murphy admits it has never been more difficult to build office towers so large, saying the "complexion of downtown is going to change dramatically" in the wake of the pandemic. Still, he's not planning to overhaul his design