Here's a logical one in the "bomming" part of town;
The radio/tv concrete block building on North Street between Robie and Agricola. Its currently broken into seven lots (three on Agricola, one on Willow, one on North, and the building itself is two lots).
I figure there's two possible scenarios;
1) The street layout could be left as is providing for continuous street frontage and more potential for high density. Low-rise retail/office use along North Street, townhouses or detached lots along Willow Street, a mid-rise along Agricola, and set back in the lot two high-rise towers with acess off of North Street.
2) Another idea would be to install a dividing street in line with John Street (a block south). This would increase street frontage and reduce the developable amount of land but could be good for the neighbourhood if done correctly. Willow would see townhouses rising and North would still see retail/office building(s). The new street would have townhouses to the west and a mid-rise building to the east acting as a base for a single high-rise tower placed near the centre (around the current radio tower location). Agricola would still get a mid-rise building with ground floor retail and possibly a second entrance to the high-rise.
With the McCully project abandoned I think the Agricola building should be office or hotel space to make the neighbourhood more attractive to all people. If developed correctly it could be as changing for the neighbourhood as Glastone Ridge.