Just watched the video, I can see rapid fire, octopus, nautilous strike, and shockwave just to name a few copy-pasted + new paint pirate skills. In light of this evidence, I feel certain I can say that Jett = CMS Dragon Warrior.
Furthermore, since Nexon would never implement two exactly identical classes to the game, this means that we're not getting the justice pirate update that KMS got (since pirates would = Jett and that would be redundant).
Lastly, (the more speculative of my assertions) since the thief update was tied to the pirate update, it's likely that we will not get the justice thief update either. Also, the dual blade update, tied to the justice thief update, is unlikely to ever arrive as well.
Do you agree with my logic? If so, then how do you feel about getting Nexon'd out of one of the cooler updates to the forgotten classes? (Poor night lords can't ever get anything nice, can they?)