Me thinks the current government will indirectly cause an economic slowdown due to the various anti growth policies (pipelines, non-resident taxes, more tenancy regulations), etc... and this will solve the "housing" problem by itself.
What I wonder are how many rental units are occupied by people working in the trades building all these new buildings. Once all the current new projects are finished, will these people find employment in future projects or not? If not, they'll be moving out town fairly quickly I think hence freeing up rental units and raising vacancy rates and lowering rents somewhat.
I believe there's a "scarcity premium" in a lot of the current new rent levels of 10-15% and once market has more supply at the top end, like Yello, Bosa's Pandora street project and some of the new condos as rentals, the top end should soften with a corresponding effect onto lower rent levels as well. I heard that V1488 is not full after a few months of marketing so that has me wondering about the depth of the market at the top end.
This being said, there are opposite forces on the new condo side with stronger mortgage rules which may force people to rent longer. So hard to say what net effect will be.