CDL.TO
Moderator
Last time I was there (a few weeks ago) a lot of the lands on the Richview Corridor were yet to be developed. The City would have to buy the land back and demolish the little that has been built there so far. Once that is done there should be more than enough room. The corridor is designed to fit an Allen Road-style transit ROW.
Development is pretty advanced. It's even on Streetview:
https://goo.gl/maps/5iPuhgTAJt12
I'm not even completely opposed to buying back and demolishing, but I don't think it's politically realistic now.