The Harper Government cannot be seen to be ignoring the financial side of the F-35 deal (now that it's out in the open), as they are using the same arguments on other big policies.
Whilst Canada remains officially committed to the program, Canadian companies retain their share of the manufacturing work, which is not guaranteed otherwise (read: more likely to be kept the longer it stays committed).
The end result could be anything from cancelling & buying Super Hornets to a whitewash review & F-35 continues, with any amount of delay.
Unless anyone here knows what's going on in Stephen Harper's head, I suggest we wait and see.