WDW has never before extended the free dining offer for the general public into late October, November or December.
Last year was the first time it was offered for those periods at all, and the offers were only to PIN code recipients and Disney Visa cardholders.
The answer regarding a general public offer for that time is - we can't be sure what will happen this year, but it's never been done before.
UK residents are getting Free Dining into that period so you never know. Alternatively, if things are still slow look for some kind of deal.