Aldor, Scryers, and the Sha'tar
Shattrath was once the draenei capital of Draenor. Its name means "dwelling of light." When the Burning Legion turned the orcs against the draenei, the fiercest battle was fought there. The draenei fought tooth and nail, but in the end, the city fell. The city was left in ruins and darkness until the Sha'tar arrived. The Sha'tar, whose name means "born from light", are the naaru who came to Outland to fight the demons of the Burning Legion. The naaru were drawn to the ruins of Shattrath City, where a small remnant of the draenei priesthood conducted its rites inside a ruined temple. The priesthood, known as the Aldor, quickly regained its strength as word of the Sha'tar's arrival spread. Reconstruction of Shattrath was soon underway. It wouldn't be long, however, before the city came under attack once again.
This time, the attack came from the armies of Illidan Stormrage. A large regiment of blood elves had been sent by Illidan's ally, Prince Kael'thas Sunstrider, to lay waste to the city. As the regiment of blood elves crossed the bridge, the Aldor's exarchs and vindicators lined up to defend the Terrace of Light. Then the unexpected happened: the blood elves laid down their weapons in front of the city's defenders. Their leader, a blood elf elder known as Voren'thal, stormed into the Terrace of Light and demanded to speak to the naaru A'dal. As the naaru approached him, Voren'thal knelt and uttered the following words: "I've seen you in a vision, naaru. My race's only hope for survival lies with you. My followers and I are here to serve you."
Cenarion Expedition
The Cenarion Circle's main expeditionary force in Outland is known as the Cenarion Expedition. Though it began as a small venture controlled directly by the Cenarion Circle, the expedition has become a large and fairly autonomous body. The expedition is based at Cenarion Refuge in the far east of Zangarmarsh, immediately west of Thornfang Hill in Hellfire Peninsula.
Keepers of Time
At the heart of the Tanaris desert lie the Caverns of Time, home of the bronze dragonflight. Nozdormu and his flight work to safeguard the time stream against all who might disturb the delicate pathways of fate. Lately a malevolent force has infiltrated the timeways, and the efforts of this mysterious enemy could lead to a destabilization of the world, and even time itself.
Lower City
Lower City is located on the underside of Shattrath in Terokkar Forest. Populated by the refugees from the many wars that have wracked Outland, it is home to a diverse array of beings who owe allegiance to no group. Adventurers can gain reputation by doing quests located in Lower City itself, as well as aiding citizens of Lower City in other places, such as the Refugee Caravan in the Bone Wastes.
Netherwing
When Ner'zhul recklessly opened multiple new portals on Draenor, the resulting magical stress tore the planet apart. The energies released in this catastrophe altered Deathwing's eggs, resulting in the nether drakes: ethereal dragons whose bodies are composed of energies from the Twisting Nether. Without Deathwing's guidance, these otherworldly nether drakes are just now finding their own way among the blasted ruins of Outland.
Ogri'la
Once thought mere legend, the Ogre plateau of enlightenment is indeed real, and those who prove their worth may find much to occupy themselves in the hidden sanctuary of Ogri'la. The new Outland faction has much to offer an enterprising player in search of enlightenment – and perhaps those with more material rewards in mind.
Sha'tari Skyguard
The Sha'tari Skyguard is a faction related to the Sha'tar that is closely associated with a special epic flying mount, the nether ray.
Sporeggar
In the far west of Zangarmarsh, nestled between Marshlight Lake and the Spawning Glen, lies Sporeggar, the village of the sporelings. The sporelings, a mostly peaceful race of mushroom-men native to Outland, are facing numerous threats to their quiet way of life.
The Consortium
Led by Nexus-Prince Haramad, the Consortium is a loosely affiliated cartel of ethereal smugglers, traders, and thieves who have come to Outland to benefit from its riches. To this end, the Consortium has set up several bases of operation in Outland. Their camp in Nagrand, located due south of Sunspring Post, has been tasked with gathering the arcane treasures of Oshu'gun, and they have been authorized to subcontract any adventurers willing to assist them with this task.
The Scale of Sands
The Scale of Sands is closely linked with the Keepers of Time.
The Violet Eye
The Violet Eye is a secret sect of the Kirin Tor, the ruling council of Dalaran. The Violet Eye was assigned to keep an eye on Karazhan and Medivh, in case things got out of hand. And things in Karazhan have indeed gotten out of hand. In recent years, several nobles of Darkshire ventured into Deadwind Pass to investigate the blight that had settled over the region. They entered the dark tower, but never emerged. The Violet Eye, too, sent agents into Karazhan to investigate, but none of them ever reported back. To make matters worse, the wizards of the Violet Eye have discovered what might very well be demonic emanations coming from the tower.