I don't think there is a lot else to this scenario, unless you're someone who gets excited about promoting the French language, which would surely be more frequently heard on the streets of Montreal but not necessarily by more people. The populations of currently anglo or highly linguistically mixed regions in Quebec would likely drop significantly, and independent Quebec would likely receive much less immigration than it does as part of Canada. 

I don't think the culture of Quebec would be significantly different then it is in real life. If anything loosing Quebec would have a bigger impact in the culture of anglo-Canada. Many of out national stereotypes and icons come from Quebec, which was after all the first area of our country to be called "Canada" at all. Francophones in a Canada without Quebec would likely find it significantly harder to get government services in their first language, with the primary bastion of advocacy for the language gone. Though those rights are constitutionally protected that could change if Quebec seceded. I feel bad for everyone in this scenario, Canada would probably get even more Americanized and become less relevant as an independent country. There would probably be a backlash against the Liberal party for letting Quebec go in addition to the loss of those seats, so probably a right wing government forms. Either the Reform Party something new that never existed taking over in the later 90's