Haven't heard anything yet, not that we typically get much warning!
That being said, if you know you are going to visit, and can afford to prepurchase your tickets now, it's not a bad idea. I doubt very much that prices would go DOWN before your trip. If you are planning to purchase a package, the same thing goes. People who had locked in their packages and paid a certain amount were not subject to the August 6th increase this year. They still got the old price, provided they didn't make any changes to the package after the price increase. The only thing advanced package purchasers had to pay in addition was when the resort tax went up a penny - you can't fight the tax collector!