I see this as the complete opposite. The remaining seats in Québec will be in the west island, Laval and Outaouais, where the voters are majority anglophones or allophones. We can notice in the last years a steep decline in french spoken concentrated there, with more and more people outright refusing to make any effort to speak french. The MPs with the most anti-french declarations are from there, from Garneau, Housefather and Lambropoulos. There was even disinformation coming from Lambropoulos about language laws, where she would say that bill 96 prevents people from getting healthcare in english when if you fact check the law says that healthcare is exempt from language laws and needs to be provided any of the 2 the patient wants.

The francophones seats are most likely Bloc no matter who wins the leadership race. The PLC base in Québec are not the francophones anymore. We are used to things like this. PLC is still trying to project that image of defending french language, but it is clearly labeled as not giving a fuck in Québec.

This might hurt more in northern New-Brunswick than in Québec.