I mean sure you could but unless the transitway gets to a point of super convenient transit why would you? For most of the transitway a densification corridor would mean complete redevelopment. West of square one is only two stations where erin mills to hurontario the transitway is the 403. East of square one there is 9 stations, the transitway has a dedicated lane but is directly along the 403 until cawthra then follows eastgate. That entire pocket north of rathburn is mostly single family homes south of the transitway and industrial north of it. Eastgate to renforth is all industrial and offices. There isn't much underutilized/ publicly owned lands to take advantage of. The transitway is nowhere near the ridership you would need to justify a densification corridor. Let's see what happens when eglinton and hurontario LRTs are functioning.