Toronto is a striking example. When I was young—a long time ago—Ontario's francophone community was concentrated in eastern and northern Ontario. It's estimated that, by 2025, the Toronto area will be home to more francophones than the Ottawa area. Bear in mind, however, that many of those people are immigrants, and so they aren't automatically counted through the long-form census. In theory, they don't count in our schools. That's why the questions need to be added to the short-form census: these people have to be enumerated as rights holders.
On March 10th, 2020. See this statement in context.