The New Council of Tirisfal is the successor to the original Council of Tirisfal.
It was formed before the events of Wrath of the Lich King to deal with Cho'Gall and his masters because the armies of Azeroth were focused on Northrend and the Scourge, the threat may not have been something an army could have dealt with and it could have required magical intervention.
The decision to reform the Council of Tirisfal was made by a group of three people at Theramore Isle after Med'an was rescued from Cho'Gall: Aegwynn, Jaina Proudmoore, and Meryl Winterstorm. They also planned to recruit Maraad, Khadgar, Broll Bearmantle, and Thrall; with Malygos's actions hampering arcane magic across the world, it was decided that they would need to include practitioners of divine and nature magic as well, such as the dwarven High Priest, Rohan; the gnome, Krank Axeljink; and the tauren Archdruid, Hamuul Runetotem. Thrall and Khadgar declined, but appointed Reghar Earthfury and Dalynnia Wrathscar respectively to serve on the council in their stead.
No new Council or Guardian?
This section concerns content exclusive to Legion.
In the original incarnation of the Council of Tirisfal, the members contributed some of their power to a nominal leader called the Guardian of Tirisfal and Med'an supposedly served that role in the new Council, but a later animated short involving Khadgar indicated that the role of Guardian was not re-established and a World of Warcraft Q&A panel at BlizzCon 2016 confirmed that the Med'an timeline was not canon.
|Aegwynn||Founding member||Deceased||Morgan's Plot, Deadwind Pass|
|Krank Axeljink||Engineer representative||Deceased||Unknown|
|Rehgar Earthfury||Shaman representative||Alive||Unknown|
|Maraad||Paladin representative||Deceased||The Skybreaker, Icecrown|
|Med'an||Guardian of the New Council (first, but disputed)||Alive||Unknown|
|Jaina Proudmoore||Founding member, Mage representative||Alive||Unknown; formerly Theramore, Dustwallow Marsh|
|Rohan||Priest representative||Alive||Hall of Mysteries, Ironforge|
|Hamuul Runetotem||Druid representative||Alive||Elder Rise, Thunder Bluff|
|Dalynnia Wrathscar||Diviner representative||Deceased||Unknown|
|Broll Bearmantle||Druid representative||Alive||Cenarion Enclave, Darnassus|
|Valeera Sanguinar||Enforcer of Council||Alive||Unknown|