Hi Vicki,
That's quite a difficult question to answer - a little bit like asking how long is a piece of string.
The answer to your question really depends on a number of factors:-
1/ What type of Park Tickets do you intend to purchase?
Although there has just been a price increase in the cost of some of the U.S.A. Park Tickets, the price of our UK & Ireland Exclusive 7,14 and 21 Day
Ultimate Tickets has remained unchanged.
2/ Will you be staying on-site when you visit the Walt Disney World Resort?
If the answer is yes, and you would potentially want to add a Disney Dining Plan (or take advantage of a Free Dining promotion), you would need to book your Hotel, Park Tickets and Disney Dining Plan at the same time as part of a Holiday Package.
Obviously there is always a possibility of a price increase coming into force at any given time. If it were me and I was planning to book a package with the Walt Disney Travel Company here in the UK, I would wait and book your Disney Resort hotel, Park Tickets and Disney Dining Plan all in one go when you are ready to book for 2017.
Wishing you a magical holiday filled with memories which will last a lifetime!
Emma