The following years resort rates are usually released sometime in August. I am anxiously waiting for them too. I want to try to sneak a quick trip in next year if we can. Our next big trip isn't until December 2014 and I am not sure I can make it 3 years.
Historical Discounts from All Ears may provide some insight...three years worth here. No guarantee they'll have the same offers but you can see they are often made available at the same times yoy.