The World Wakes

The World Wakes is a Grandmaster quest, first mentioned in the Lore Livestream and later in the Behind The Scenes. It was said to be released in February 2013, but was later delayed to the week commencing March 4th. The quest is labelled by Mod Mark as "the most important one to date".

Reward
Normal rewards include over 800k in XP, new combat abilities for all points of the triangle, a magical ring, new cosmetic torso gear, and access to a brand new Slayer area with targets that drop shiny level 85 gloves, and a pet.

Additional rewards
Only the Combat level of 140 is needed to start and finish the quest, however for additional rewards you will need all of the following:

Pre-Release
Before the quest's release, Orlando Smith could be found to the west of the Legends' Guild next to an ancient door. When spoken to, he gave hints about how he had found the original resting place of Guthix and would soon require help. In addition, a mysterious Shadowed Figure could sometimes be seen near-by to the north, who would then disappear again after a while. This Shadowed Figure can also be seen at times at the entrance to the Grand Exchange and the entrance to the God Wars Dungeon.

Trivia

 * The World Wakes was originally slated for release in February 2013, but was delayed to early March for various reasons.