Never silly to hope for a discount. It could happen, but IMHO, it is very, very unlikely. As you know, that's peak season and since attendance is way up this year, I doubt Disney will have any trouble filling the rooms with guests willing to pay rack rate. The discounts offered so far this year seem to be fewer in number and not a sgenerous as they have been n the past. Thus, I don't think there will be many (if any) offered for 12/24 - 12/31.
Good luck, though -