This looks less than adequate.
First off, that's part of an Eaton Centre-style shopping mall, not a skyscraper. I've never seen an enclosed shopping mall that acknowledged the outside world or pedestrian experience.
Secondly, Copley Place was built in the early 1980's. Somehow, I don't think the architect for 50 Bloor is going to suddenly decide to ditch the neo-modren glassy aesthetic of our era and run with retro brutalism.