As a lot of the market is being driven by "investment" (apparently about 25% of it, in fact—
https://www.cbc.ca/news/canada/toronto/investors-in-ontario-real-estate-market-1.6258199), that bubble will pop sooner or later. Eventually, prices will get to the point where financing options for these investors will balk, leaving vastly overpriced condos unsold. Or alternatively, as urban prices go up, so too do suburban and greater metro (now currently in full-swing), leaving fewer options for those living in a city metro area to take on more debt than they can handle. Voila, housing crash, and a lot of people out of a lot of money. The other option being the city just can no longer sustain itself and collapses, losing both business and residents. The market pricing isn't being driven by long-term investment, it's being driven by airbnb micro-hoteliers, pre-con flippers and wannabe land barons looking to make a lot of money quickly.
And yeah, we've been hearing this for ages and it just keeps going up. But there there was a lot of natural growth driving it to begin with. Right now though, it's an "investment" free-for-all, and every speculator market finds its limits. It's not if, but when.