Yeah I've heard something about that... But haven't heard when it's going to happen. The Women's basketball team just got new uniforms which say Pioneers.
For what it's worth, I wrote a letter opposing the change. Pioneers has more to do with exploring, discovery, hard work, and skill.
If you look up the etymology of pioneer you find that it was originally French "pionnier," foot soldier, or scout. Over time, the term evolved to encompass anyone who is among the first to explore, innovate, or settle in a new area.