Nevada is not the only school to get a new look helmet for the 2013 season, Boise State is getting a minor redesign of their helmet for this season. The new helmet is below via the Idaho Statesman:
The difference from last year's helmet is very small as the Bronco logo is a little bit smaller and also the helmet is more of the lacrosse style helmet on top. On the opposite side of the helmet will be the players number. This design can be used on various white or black colored helmet.
Compare that with the 2012 helmet, and not much different.