Kobold Avenger
Legend
The first example of a Shadowy pact for Warlocks was a Dragon magazine article on the Umbragen from the Dragonshards real-time strategy game based on Eberron. It mentioned how these drow were linked to a shadowy plane or source of energy where they drew their powers as Warlocks and Soulknives...
It's only natural that warlocks be a class in he 4e PHB1 because after Complete Arcane, the Warlock ended up getting more support as a class than Sorcerers and a couple other core classes did.
Complete Mage actually attempts to classify the different sources of warlock powers. Even though it's written under the 3e methodology of "any chaotic or any evil" it does give options for where there sources may be. I think it's very likely much like how implements and traditions for wizards will be expanded on in later products, pacts will be expanded on for warlocks.
It's only natural that warlocks be a class in he 4e PHB1 because after Complete Arcane, the Warlock ended up getting more support as a class than Sorcerers and a couple other core classes did.
Complete Mage actually attempts to classify the different sources of warlock powers. Even though it's written under the 3e methodology of "any chaotic or any evil" it does give options for where there sources may be. I think it's very likely much like how implements and traditions for wizards will be expanded on in later products, pacts will be expanded on for warlocks.