I was thinking about this recently and probably too much, but here are my thoughts:
Disney could have extended FD through the end of the year if they wanted; they still can, after all, they extended 4+3. However, they have already sent out codes for Oct, Nov and Dec, and chances are good that they will do FD again for Visa cardholders. I just don't see why they would offer anything else during this period. Think about it, between Halloween, the MNSSHPs, Jersey Week, F&W Festival, Thanksgiving, the MVMCPs, the parade taping, Pop Warner, then Christmas and New Years, those last three months are full of events that the first nine months were not. I think Disney realizes they don't have to offer any more blanket deals to bring people in. Couple that with the economy slightly (and I emphasize slightly) turning a corner over the next few months, and I just don't see it happening. Ultimately only Disney knows what their reservations look like, but I think it would be foolish of them to continue undercutting their own revenue.
We are going in November, and yes we'd like a deal. But we are going regardless, and so we're not holding our breath for one. Just my 2 cents.