It all sounds wonderful!! Lucky guests. If you want something vegetarian how about either some kind of pasta (pumpkin ravioli?) or a artichoke heart tart in filo?
I think I would add another dessert....something decadent like a flourless chocolate cake. I think people tend to indulge in sweets over the holidays.Or keeping with the NYC theme....cheesecake.
Great menu and I love your choice of bubbles...2 of my faves. I hope you are going to have lots of kitchen/serving help to keep trays of food replenished and clear dirty dishes/glasses etc.
Eggnog? Coffee?