soup suggestion for Christmas dinner?

[noire]

We do a big (many courses) Christmas dinner. One of my jobs is the soup. While we have several foods that are Required (ie., we would be lynched if they did not appear), the tradition of the soup is that it changes every year. I've done a tomato with curry and cilantro, pumpkin-garlic and artichoke. The best ever was the roasted pear with sage. It has to be elegant, interesting, and not too heavy since there is a LOT of food to come.

I am coming up with exactly nothing. Can anyone suggest anything? Please? Help?