I think it's the other way around. Instead of someone else being the "job representative" in the MSQ, we are the "job representative" this time. No matter what Job the WoL is, they will be the Warrior of Darkness. So the MSQ will probably be focusing on us using Darkness as a power source.

It's kind of a pun like how the Main Job we had in 2.0 was us as a Warrior. The theme of 2.0 was us becoming the Warrior of Light.