It would be a nice building if they used the same materials as they did for 15 CPW, but given the relative price points I doubt that will be the case. It's a shame.
This rendering looks good though:
Btw, is that block bounded by Huron, Fairbanks, Erie and McClurg supposed to remain green space of some sort, or is Northwestern just waiting to have something to build on it? It would be great if downtown Chicago had more small parks. That's what I'd prefer for the USPS facility in River North as well (along with a lot of other redevelopment in that area.