I doubt that.
No one else plays Canadian rules... its a double edged sword having a unique game to your country. Its great because its your country's...but it can suck if you want some international competition.
But I agree with the sentiments that if it is handled well in Canada, it'd be good to persuade people to build another stadium for CFL expansion but I think they'd want to hold it in a city that already has a good stadium and large population -- like Vancouver, Toronto, or Montreal.
That being aside, they made a GREAT selection in sending it to Austria this year. Germany/Austria the game is really starting to grow. Germans just about beat the Japanese in the junior tournament and the Japanese team was REALLY good.
The Austrians DOMINATE the Germans at the pro-level and the Germans have probably the best (deepest) football league in Europe with the GFL.
If this is handled well, it could further spurn the growth of the sport over there.