See the thread on Tiered Pricing - the year will be broken into Bronze Silver and Gold and your ticket cost will be the highest tier you land on. It's expected to raise prices by 13-15% with the exception of late april early may all weekend days are silver or higher.
They are contemplating tiered pricing but it's nothing solid on if it will go into effect. It's a money play for sure. Hotel room rates didn't seem to change much from 2014 to 2015. You will probably see a small percent increase to keep up with rising costs of everything else.
I can't wait to book but prefer to do so when I can book the package. Just getting impatient and didn't see anything online with folks speculating. I have booked in June before but I have also booked the end of July too. Guess I will have to continue to wait