The ability to view, reserve, or block rooms beyond 51 weeks. Currently, users can only make or view reservations within 51 weeks of the current business date.
Actually, Choice does this for a reason - a year designation is not necessary. It's also nice to not be bombarded with guests checking out fom an event weekend wanting to make reservations for the next year. If you tell them they have to wait a week, they tend to spread the word to others at breakfast and call back later.