Sorry to bump with no true information, but while doing some research into this project i cam across this,
https://www.skyscrapercenter.com/bui...1-market/26938
Im not sure how up-to-date it is as it still shows the initial renderings for Schuylkill yards, but if it is in anyway correct, it looks like they still hope to start the supertall(or whatever is in its place) this year. But i must repeat, i dont know how up to date this is. But i figured it put it here just in case it is accurate