Hi Christine!
Thanks for your question. I love that you are already in planning mode for your Walt Disney World vacation next September. And I also love that you are planning to attend
Mickey's Not-So-Scary Halloween Party. It is such a fun way to celebrate the holiday...you are going to love it!
As you said, dates for the celebration have not yet been announced for 2017. Because of this, it is tough to know for sure what the plan will be. My suggestion is to take a look at the
2016 dates for an idea of the days of the weeks that the Party is being held this year and try to make a guess as to how those would translate to next year. By the way, the 2016 dates
were announced by our friends at the
Disney Parks Blog at the end of March. I would definitely keep my eye out there if I were you for any official announcements of the 2017 dates, as well. With a little bit of luck and an extra sprinkle of Pixie Dust, you will have the dates in hand as you begin making your Reservations and plans for your Walt Disney World vacation. I sure hope so!
Please let us know if there is anything else we can do to help you as you plan. Have a magical day!
-Nancy-