Looks like you should keep your eyes peeled on Guild Wars 2 as something is about to "change Tyria forever".
"Something stirs in the Sea of Sorrows," the game's website currently reads. "Unravel a mystery of monstrous proportions in The Lost Shores, a massive one-time world event that will change Tyria forever!"
I have no idea what that means, but you'll be able to experience the event from November 15, when the next update hits Guild Wars 2.