May sound strange but why not? There are a lot of stories were one side joins with the others. I can see this happening.

Cause the Federation is a homo sapiens only club! The Klingons should know that! Then again, if I smelled like that, I'd feel lightheaded too...

Not too crazy about Orion slavegirls running around spacedock. Beyond the alien ones we already have.

We can already get Klingon faction bridge officers and they are working on a system that will allow us to designate a first officer then promote that officer to a playable character.