No, it wouldn't have anything to do with provincial status. More likely involving turning the City of Toronto into a "real" level of government, rather than a mere corporation owned by the Province of Ontario. Something along the lines of:
1. Giving Torontonians the right to have a municipal government
2. Giving Torotonains the right to a democratic municipal government
3. Granting Torontonains exclusive control of their own government and democratic institutions, and banning the Province of Ontario and other governments from engaging in electoral interference against Toronto
4. Explicitly set out areas of municipal responsibility, and banning the Province from legislating in those areas
We're talking about enshrining some pretty basic democratic rights onto the city. Dozens of US cities already have these rights enshrined by their respective state constitutions.
We'd also likely see the City given unalienable taxation rights for the first time, however this would be more politically challenging than the other points.
There's no reason why Vancover and Montreal couldn't be enshrined with the same rights. However that would have to be achieved through an agreement between Parliament Hill and their respective provincial legislatures