Three wins. I'm thinking 3 or 4 (I also predicted 9 wins during our bowl season so I'm slightly optimistic).
http://lasvegassun.com/news/2015/aug/22/berns-eye-view-will-unlv-be-able-surpass-2-win-mar/
http://lasvegassun.com/news/2015/aug/22/berns-eye-view-will-unlv-be-able-surpass-2-win-mar/