My friends live in Quebec city then they also have processed PEQ but no one have had request of interview.
I think Quebec Immigration Centre only contacts candidate who lives in Montreal to interview.
Now I am preparing move to Quebec city and contact academies where are in Quebec to learn French.
If your condition is ok, move to another city where is in Quebec will good choice to pass to interview.
It's just advice for who wants to get CSQ with no problem.