Definitely Star Fox Zero, the best part is that it's co-developed by Platinum Games. Therefore it's going to be an amazingly good shooting game. Not that Nintendo is not capable of making excellent shooting games, Star Fox 64 is a testament to their abilities. But Platinum Games are just one of those developers that laser focus on this particular genre.
I'll also be picking up Xenoblade Chronicles X soon. Will probably only have time to play it over the holidays but I think it's one of the best games to come out this year.