I kept thinking Zero was somehow related to Zeromus and that SE wanted to pull a "omg this poor innocent npc is here now" and then go "unless they were the evil one all along" but thats not where they took it.

At this point i just hope Zeromus isnt just gonna be burned in 6.5 to finish the golbez arc because 1 patch to explain, sum up and then defeat Zeromus is not enough imo ... and with the 3-4h msq SE delivers per patch theres no way they can do it justice in a single patch. At the same time im not sure Zeromus is cool enough to use for 7.0 msq. Yet another "darkness is evil" plotline? Crazy.