Well, depending on the CRCT ruling/law.. it MAY force exisiting ones to be cut down anyways to 2 years.. but possibly not. Its not due till the end of the year (assuming it even does go through then), and we will have to see if changed.
Bar that.. assume that you are still on the flextab 'contract' till the end date.. its only the people starting NEW which will have the two years.
The CRTC did not in force a rule to change all the contracts to everyone even locked into a 3 year contract into 2 years. Sadly the only way to go into a 2 year contract would be doing a hardware upgrade OR pay the flextab balance and buy a new phone that way.
Your contract will end as it originally said it would, October 2015