The application deadline is July 31, 2014 but that's only two weeks away. Do you think you can get another job offer to get a one year WP by July 31? More importantly, CIC may consider that by reapplying, you're seeking a WP extension, which is not allowed under the pilot. They may also question why you weren't able to complete the certification the first time around. It would be a good idea to call CIC for their advice on what you can do: 1-888-242-2100. You could double-check with AIT as well to see what they say.
If all else fails, would your employer agree to apply to Service Canada for an LMO/LMIA in order to retain your services? This involves paying a $1000 fee and first advertising for Canadians. However, it's likely easier to get such an approval in Alberta than elsewhere.