We've discussed it before, and I hope you're right, but I'm not counting on it until I see it on the calendar. I've contacted Disney through the various sources, and all they'll say is to keep checking. I personally called dining and questioned why I could make a dessert party reservation with no fireworks currently scheduled, and they of course had no answer.
So has it been announced by Disney that the Halloween and Christmas versions of Wishes will remain for the parties? I haven't see that anywhere.