Given the state of the site as it is I’d be surprised if anybody could mount an effective campaign based on aesthetic grounds. That mockup is definitely better on the eyes than the run down area as it is.
Also did somebody say shop space? A convenience store might go nicely in that area although I think off sales would have to be prohibited, at least after a certain time.
It is also a shame the owners of the land at the other end of Brook St./St Giles Link haven’t bothered doing anything with it. Are they just waiting for the price to go high enough?