After the thrashing of Archimonde at Hellfire Citadel on the other course of events universe of Draenor, Gul’dan is pushed through a gateway to Azeroth of the fundamental timetable keeping in mind the end goal to open a path for the Burning Legion to attack in far more noteworthy numbers than in the War of the Ancients a great many years prior. While investigating the shrouded vaults of the Broken Isles, Gul’dan finds a dim crystalline jail containing the cadaver of Illidan Stormrage, the previous Lord of Outland, who was killed amid the occasions of The Burning Crusade.The Archmage Khadgar, who drove the Alliance and Horde player characters against Gul’dan and the Iron Horde on the other Draenor, witnesses the arrival of the Burning Legion and flies to the city of Stormwind to caution King Varian Wrynn of the coming invasion.The player characters, together with the disregarded evil spirit seekers, must figure out how to ace relic weapons and relics of the Titans that hold the ability to stop the Legion’s intrusion.
Amid the occasions of Legion, two characters that were thought to have been lost, Alleria and Turalyon will show up.
The extension starts around two years after the occasions of Warlords of Draenor and happens in the Broken Isles, an island chain close to the Maelstrom amidst the Great Sea. Initially part of the previous supercontinent of Kalimdor, the isles were sent to the base of the Great Sea after the Sundering ten thousand years prior, and utilized by Aegwynn, the Guardian of Tirisfal, to detain the cadaver of the symbol of Sargeras, the dim titan and pioneer of the Burning Legion. Amid the occasions of Warcraft II: Tides of Darkness, the orc warlock Gul’dan raised the islands from the ocean depths looking for the tomb; Illidan later investigated the tomb in Warcraft III: The Frozen Throne. There are six zones in the Broken Isles: Azsuna, The Broken Shore, Highmountain, Stormheim, Suramar and Val’sharah. The city of Dalaran, which served as the nonpartisan capital city in Northrend amid Wrath of the Lich King, is moved toward the southern part of the Broken Isles to give a base to the Alliance and Horde strengths to battle against the Legion.