The Bajoran Uniform... well I wouldnt use it but it has more reason to be in the game then a lot of already released stuff (it was a main uniform of one whole series, things like the mirror universe uniforms were there for an episode).
The weapons... I liked those... would love to have them ingame...
The only problem I see with this is that it's essentially the same as allowing Klingon or Romulan uniforms for Federation characters.
Then again, the Mirror Universe uniforms could technically be viewed the same way, though they are still "starfleet" uniform designs, despite being from an alternate universe where there's an empire instead of the Federation.
Aside from that, I can't say I would entirely mind seeing the Bajoran uniforms and weapon-designs put in. The uniforms in particular could work well with RPing, especially in the case of bajoran BOs, despite Bajor having fully integrated into the Federation as far as I'm aware.