This was first made last year, 2012, so still a fairly new beer. I'm also not sure how widely they distribute it since they put it in their Limited Edition lineup, meaning I'm not sure how many "aficionados" can get their hands on it to attempt a clone. Their website doesn't give a whole lot of info either, this is about all they give for ingredients:
Using barley, oats, wheat, and rye, we’ve brought the mood of fall to life with vibrant and flavorful passion.