If your writing group is looking for something to do, you might consider writing an Advent Calendar story. Each writer in the group, picks a day and writes a contributing paragraph to the story. The theme should be consistent with the holiday season, but doesn't have to be religious in nature. (there are a lot of holidays around this time). Consider the number of days=number of paragraphs=short story. Fun, creative and different.
We're doing that in our Writer' Rock/Writer's Gathering workshops. I've never tried this out before, so we'll see how it goes. Writers interested in joining Writer's rock, we're on Facebook and meet every Monday in the AOL Chapter One chat room. We monitor the chats carefully, so we don't get "spoilers" in our room.