An upgrade to the streetscape would promote the area. It just needs more emphasis on the pedestrian experience, particularly at, and because of the string of subway stations. Promote high-rises over the stations with the stipulation that stations are modernized and better integrated.
I would go as far as to say that Spring Garden Street could also use a major "Complet Street" makeover. From river to river.
It's because these streets are attracting attention and development, that they should be nurtured.