Obviously, francophones outside Quebec, individuals from these communities and political spokespersons, etc., cannot view Quebec's sovereignty as something that would be to their advantage. Quebec's sovereignty would certainly reduce the political and symbolic place that French occupies throughout Canada and in the long run it would have very harmful effects.
That said, Wilfrid raised an interesting point. The way you put the question appears to indicate that sovereignty would be absolute and that there would be no association between Quebec and Canada that would define a new direction. Therefore, that might modify...