Fort Wayne icons and/or prominent historical individuals;
Fort Wayne geography;
Fort Wayne's history as a center of innovation and invention; or
the "Old Fort" or similar military theme.
That's kind of cool in that it will weed out dumb 90s-era names like "Wizards" or "Magic" or what have you. For what it's worth, I voted for the first category, with the hope that they go with the "Mad Anthonys" in honor of the city's namesake.
And if they don't use it, I'll start a hardcore band under that name.