Answering this question in so little time would be rather tricky. I would say that caution is needed.
Is there a political remedy or program that would enable us to take action with respect to language transfers? I personally don't know of any, and they are complex.
Not only that, but it's important to understand that the number of immigrants who do not know French when they arrive in Quebec seems to have increased in recent years. When immigrants come to Quebec and know only English, that definitely has an influence on the language they will be inclined to use in the public space.
I think that it's also fairly obvious that strengthening the educational trajectory from early childhood through to postsecondary would be very effective outside Quebec, on condition of course that it is attached to immigration.