So this is my take on Zenos.

Zenos keeps referring to you as his mirror. Has anybody bothered to figure out the deeper story of our warrior of light character outside of being a sundered form of Azem? Our driving force is only one direction with little substance other then "Must do good" and Zenos is our polar opposite.

My real question is and I think it was hinted at in 5.3 but WHO is Zenos sundered from because he has a dream of walking around Amaurot. I bet if you watch that scene again and goto Amaurot you can probably find the area he was walking in and try to match it up. Also they were going for that Naruto/Sasuke vibe here which was just funny.