there's a pretty website and a shipping container with the banner Liberty on the River right off the Washington Ave. exit off I-95. Guess they need money or something to start this.
http://libertyontheriver.com/developer/
I forgot to add this, looks like it went through CDR-so there may be hope if there's financing and demand.
https://philly.curbed.com/2019/5/21/18629617/delaware-waterfront-liberty-river-project-tower