Just like in the NFL, uniform changes have to be approved on year in advance. They can get special permission to wear the old jerseys like they did a few years back when Golisano took over, but that's it. You won't be seeing anything new (or old) this year.
Ignoring the rules for a second, here's another reason why this won't happen, money. If they were going to change jerseys, they would've announced it so that they could make more money in the Sabre Store.