If you're not up to speed on your Norse mythology. The World Serpent is Loki's middle child Jormungand. Thor threw him in the ocean as a child and he became so large he could grasp his own tail, which earned him the name World Serpent. When he releases his tail Ragnarok begins. Obviously GoW has always put its creative liberties in the story. But if I had to guess Loki is the one that is speaking to Kratos in the middle of the trailer, and Jormungand is going to help you in some way fight Thor... Somehow Kratos is getting screwed either at the end or mid way and we're gonna kill them all. PS5 we'll move on to Egypt.