Hello Joanne, 
 Welcome to the Disney Parks Moms Panel where as the current British Mum here on the Panel it's always an additional pleasure for me to offer some pixie dusted advice to another lovely family from the United Kingdom!
 My family also loves visiting Disney during the month of October as the whole of 
Autumn at Walt Disney World Resort is such a beautiful time of the yEar for a jolly holiday.  With so much to see and do at events like the 
2018 Epcot International Food & Wine Festival there's truly something for everyone plus I can highly recommend purchasing additional tickets for the super spooky & fiendishly fun 
Mickey's  Not So Scary Halloween Party which takes place on select nights in the Magic Kingdom Park. 
 Dining with Miss Minnie and friends at 
Minnie's Seasonal Dining at the 
Hollywood & Vine is a must-do for my own family and in past yEars we've visited during Halloween-time and enjoyed all the seasonal fun with Minnie, Mickey, Donald and Goofy all dressed up in their finest Halloween costumes.  
 As of yet I don't have anything official to share about the return of the Halloween themed 
Minnie's Seasonal Dining but I'm sure if you simply keep on checking back there'll be updates or announcements closer to your October visit. 
 Wishing you and your 3 Mouseketeers an extra magical October holiday to the enchantment & wonder of Walt Disney World Resort.
 ~ Jane