Looking at this image started me to thinking more about 'place-making'.
30th Street Station needs no help making its presence known but looking at the Regional Rail platforms and the canopy over them brought my mind to what's been done to Denver Union Station and plans for DC Union. Considering the architecture that's envisioned for SY and the 30th Street plan, I don't suppose that some unifying modern symbol between the classic structure of the train station and the rest of the developed buildings would be too unreasonable.
I wouldn't imagine anything on a grand scale like below and the current canopy over the platforms is vintage and beautiful but maybe it's worth a think.
Denver:
architecturalrecord.com
Washington, D.C.
architecturalrecord.com
Picture it from here: