Check out the new Navy Yard Master Plan
It's, pardon my language... pretty — incredible. If they pull this off, The Navy Yard will be one of the easily hottest parts of the city. Will definitely need a Broad Street Line expansion for this. The "Historic Core" and the "Mustin South District" in particular look incredibly awesome. Even some 12 to 15-story highrises thrown in there.
Let's hope they can pull this off! I'm hoping this happens, as well as a developed "Stadium District" with housing, hotels, office space, shops, retail, museums and more... and a redeveloped FDR Park... would be pretty incredible.
PDF for new Master Plan:
https://www.pidcphila.com/images/uploads/documents/RFP_PreBid_Meeting_Final.pdf