Aquaman – the boy

We all know that Zack Snyder loves flashbacks – so this might as well be one. A flashback of Arthur Curry discovering a fellow Atlantean – or just simply discovering that he can resist underwater without an oxygen tank. This can also be a possibility.

As it can be that it is just a rock after all, with an unknown and unimportant boy diving.

This can’t be it. An all-out war between Aquaman and Justice League must happen. They wouldn’t have shown the menacing Jason Momoa uniting the seven seas if it wasn’t the case.