I would be almost certain it's a teaser, like they did last year with that talking dog show, and American Horror Story. Have seen several ads for The Americans on various Rogers-owned channels, and they all say it's only available on FX, contact your provider blah blah, and have big letters on the bottom of the screen 'not available on Bell'.
So it's highly unlikely they'll turn around and air the whole thing on City when they're making such a big deal on their own ads about subscribing to FX to see it.
Unfortunately this is one show I would like to see, but I am on Bell Fibe...and FX isn't enough to make me want to change lol! I figure if it does well, eventually it'll show up on regular TV, or on Netflix or iTunes or something.