Yes. I would add the entire issue of immigration and the federal government's role in promoting immersion programs when newcomers enter the country. The idea here is for them to be made aware of the immersion programs offered.
I am also thinking of national standards for language skills. Philippe talked about that earlier. I am talking about a common framework of reference for languages. That would help determine whether people who claim they are bilingual are sufficiently bilingual to work at Tim Hortons or in the public service. If we had Canadian standards, the world would know what it means when people say they are bilingual to a given level.
There is also the mobility of teachers and school administrators among the provinces and territories. I believe the federal government could facilitate mobility.