I think that they will still buy it, PM Harper is determined to buy it, but it is significant that they are looking at doing a full up competition with other aircraft:

O, Canada, land of “peace, order and good government.” Land of compromise and polite politics. Land of turmoil over whether to buy the F-35.

As in the United States, the fighter plane has become a rancorous political issue. What once looked like a sure buy of 65 planes has been bogged down by infighting and un-Canadian vitriol, and the purchase is on hold while Canadian officials consider whether to buy another plane.

The decision effectively pushes the purchase decision past elections, and I don’t think that anyone beside Boeing will submit a bid, the idea that Canada would purchase a non-US airframe being ludicrous, particularly for Harper, who really buys into the whole “special relationship” thing with the US.