"Something stirs in the Sea of Sorrows," says the Guild Wars 2 site. We should all be ready to unravel a mystery of "monstrous proportions" that will change the land for all time.
At present, there's no more information than that text and a handful of screenshots. What could ArenaNet have in store this time? Something wet? Something beachy? That's about as much as I can get from those pictures. I certainly wouldn't mind a few ships myself. Ships are pretty cool.
Thanks to Joystiq.