Blah, these concept designs suck, the only tolerable one is the orange helmet since its just a tweak to the original. Anyway here's the link to the UT Co-Op's facebook page who introduced a few possibilities from the new UT Nike Pro Combat line on their wall today.
So without further ado...
The Horn with Numbers
and the Horn without Numbers
The Cartoon Bevo Helmet
The Tacky Motorcycle Style Helmet
The Color Inverted Classic
But I would rather leave our uniforms/helmets alone. Don't Mess with a classic.