Hi Nicole, welcome to the Disney Parks Moms Panel.
October is a great month to go to Disney. The weather is great, sunny but not too warm and you will get the chance to experience
Mickey’s Not-So-Scary Halloween Party, which is my favorite special event at the Walt Disney World Resort.
I wouldn't wait any longer to make reservations, because you are only five months ahead of your trip. It is not common to see last minute offers, and Disney have already released price information regarding this fall. Besides, if you are planning to make reservations for restaurants or character dining experiences, you can already do it. They can be done up to 180 days prior to your visit.
I would also consider checking at mousesavers.com, they usually have information about good deals for traveling to the WDW.
Hope this information helps your planning. Come back to visit us again.
Have a magical day!
Gina V.