Back in the "Needs Sexy Male Commanders" thread, I posted to the linked images. Invisible_Man's reply might have hinted that the second picture, the commander with the long tail and claws, was JP.
Again, pure speculation based and could have been a misdirect. No further detail about who JP is or what they do is available at this time. It most likely wont be until they're prepared to go into Open Beta, like they did with B.R.O in the closed beta.
CBT 3 might introduce an entirely new and different commander as well. I'm interested in seeing what comes out of that.