The issue isn't whether QC is a passionate, or even a viable NHL market today. The issue is monetary. Specifically, who will be able to spend at least US$1bn on an expansion fee? What is their source of income? How sustainable is said income? Who would be investors to help defer costs associated with said expansion?
Quebecor *could*, but their current business doesn't appear to have anything lined up for the future. Newspapers are a dying format, and so is cable television, so they'd need to diversify those interests yesterday, or have a different entity come in to save them when they finally fall. So... who else?
It's sad that so many people don't know history.
After the round of expansion in 1967, the WHA popped up as a fledgling competitor to the NHL. I'm sure you know this much, at least. Anyway, the league saw where the WHA was looking to put teams, which included a team on Long Island in New York, and a team here in Atlanta. In an effort to prevent this, the NHL came in and awarded franchises to these two locations. The only reason the Flames moved is for the same reason Quebecor shouldn't own a franchise: He didn't diversify his business. I know I covered this a few pages back.
In the 90s, the league had been paying attention to how some larger minor league cities were doing for the purposes of expansion. Atlanta was a member of this club at the time. The Atlanta Knights were extremely successful, including a Turner Cup win in the 1993-1994 season. The team would be moved to QC due to their home arena being replaced by Philips Arena, as well as the incoming expansion team. Ted Turner became owner of the Thrashers, but man, he was just an awful and clueless owner.
Moving forward, what does the future hold? Who knows for sure? If the BoG decides Atlanta is worth revisiting, if they've decided the location in the northern suburbs is much better for a potential franchise, and if the potential owner or owners the league has been talking to here meet the league's requirements (whatever those might be, but money is most assuredly one of them), they will.