That may have been some artistic licence on the part of the illustrator, as I haven't yet found any mention of it in the transportation section of the RFP. Though it does mention extending the 514 and 501 (?) into Quayside, plus heated sidewalks, retractable canopies for weather protection, and self-driving cars, of course.
Of course, the conceptual images are exactly that and I am not inclined to take them overly seriously.
Don't forget the LRTs that don't need overhead wires
That can be done.