There is already a thread covering uniforms for the game. UNC's uniforms are identical to the ones they had last year (they didn't bother to update out of date uniforms with the new black-accented stuff coming), their new duds will be added in the first Uniform pack. So at retail you won't be able to wear a stormtrooper look but you will eventually.
The search function is your friend, especially during the banning season that occurs near the release of a title.