The quick upshot: upzoning worked to lower prices. But there's been a political backlash against the most ambitious country wide reforms, and a lot of forward thinking policies are now at risk of being reversed.
BC is the only province that has been doing similar things, especially recently with province wide zoning reforms. (Not coincidentally, BC is one of the only provinces with a progressive government in the country.) There's a lot of political buy in at the moment in BC, including municipal government support, but I'm worried about how the homeowner class will react when the policies actually start taking effect.