I'd say the duty to advance English and French under part VII of the act is clear. The measures the federal government can take to help the institutions and ensure the minority language communities advance are virtually unlimited.
The only thing I would note, since I know you're also studying the modernization of the Official Languages Act, is that it would be helpful to define what a positive measure is. That's a question that's been the subject of many arguments in the courts. It's something that should be considered.