Ayotte's on track to crush and keep Scalia's seat open 4 more years.
The GOP will likely get away with keeping the seat vacant for a year without much if any consequences, but you're dreaming if you think they can get away with it for 5. Not only because of the fact that it is ridiculous on its face, but because pretty much everyone has overtly said "the next president should fill the vacancy." There's no room to maneuver around that, and the media massacre would be endless. It would be like if they never re-opened the government in 2013.