When do you have to renew your annual pass in order to get the better rate? Also, did the prices go up since the ticket prices increased? I tried to go on dvc's site, but it was way to slow!
Click Here to view the DIS's information on AP ticket pricing.
I am not sure how far after your expiration you can purchase the renewal pass, but I did it once a bit more than a month later, they just backdate the expiration to be one year after the pass originally expired.
You may want to purchase a new AP if you will be making two WDW trips with that following year instead.