Mythos isn't a place which could easily be restored to normal. With all the chaos that is already going on, it would take nothing short than a miracle to accomplish this.
With Glade ruling the world as the Supreme Overlord, more difficulties arose. This is mainly due to the fact that Pier is assisting the elf in making the changes. The dragons were bred into Chaos Dragons. All other monsters got tamed and turned into chaos versions of the originals. All of these serve Glade's forces together with his trusted soldiers and, his forty generals.
Hence, the three major deities did sufficient preparations. The first of this is choosing only humans whose skills can complement one another. They remembered Zeke as they did this, thinking how the human is an all-rounder who is capable of anything. From that human's fighting style, the gods got an idea of what job classes they need.
[Defenders x5]
[Artillery x2]
[Magic x2]
[Assassination x1]
