Its an interesting subject. Seattle is far larger & wealthier than Quebec which is about the size as Winnipeg. Past Expansions the NHL had set fee's, however here and now in 2013/14 & beyond you's almost have to have some sort of graduated scale with various forms of criteria that would see a smaller market paying less than a bigger market.... however, when talking about Quebec there are several intangible factors (history of the game in the region, an exceptionally avid fan base, feral rivalry with Montreal & likely Ottawa as well as Toronto & so on) that also need be considered.
With Seattle, you've got some history albeit broken, former minor pro stronghold, very supportive of Junior, a rivalry with Vancouver easily cultivated (along with Calgary, Edmonton & the 3 Californian teams & even Colorado to a lesser extent). So to me, all things being equal, I could see both cities paying in the range of $250M each, same amount. Pluses & minuses in both cases. Then again maybe Im $50M off there, could be $300M by 2014/15. Really hard to say. According to Forbes Winnipeg is worth a whole lot more than the $170M they paid ($110M for the team & $60M in Relo Fee's) and even at the time many felt it was heck of a bargain....
as for not announcing what the Expansion Fee's might be, I dont think the NHL would with hold that information. Its good for business, letting people know that Franchise Values are robust, ever increasing & escalating. Southern Ontario is an entirely different matter and right off the charts. Whatever anyone else anywhere else pays is almost non-applicable. Depends on exactly where the teams located, then youve got some serious indemnification payments to pay MLSE & the Sabres. You could well be looking at $500M+ before the shovels even hit the ground on a new arena or retro-fit Copps Coliseum in Hamilton.
And though Gary Bettman & the league claim "no list" of expansion cities exists, top of mind and in order of priority would just have to be the long coveted Pacific NW city of Seattle and a return to Quebec, with Peladeau just recently shelling out $1.5B for broadcast rights. That kind of money buys a lot of favors & theyve got building on the go. Could be as tommy opines above the only thing holding back an announcement is the situation in Seattle with the arena. Once the Environmental Issues are dealt with, the MOU redressed and if all's favorable, away we go.