Quote Originally Posted by Lusavari View Post
Swimming just would not work. The Oceans aren't even water, they're a texturized floor.
Basically this. You can't explore something that isn't there.

Now if they were to design deep sea zones, which given the lore behind the Sahagin seems possible, and were they to introduce it in a way that made sense(IE. nothing like WoW or any other cartoon of an MMO) within the context/physics of the world, then I'd be for it.