The World Wakes

The World Wakes is a Grandmaster quest scheduled to be released in February 2013, first mentioned in the Lore Livestream and later in the Behind The Scenes.

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
A week 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. Also short appearance was seen near the entrance of Grand Exchange