You will begin the expansion by seeking out your Artifact weapon.
Weapon: Sheilun, Staff of the Mists
Quest: Adventure begins by returning to Panderia to seek out the staff of the Emperor Shaohao.
On the picture: Far left is the base weapon then the different upgraded versions of it. The inspiration of the weapon is from the different animals and sha (far right the Red Crane, second far right the Sha).
Quest: Base version is at far left.
Quest: This weapon was wielded by Archmage Kael'thas who used this weapon in the battle against the Lich King in Ice Crown Citadel. The sword was lost there and the fire mage has to go back there and search for it. Base version is at far left.
Weapon: The Eagel Spear
Quest: This weapon is new to the Lore. It is a fabled weapon of the Tauren Tribe in the Highmountain that the hunter will seek out by trapping down the powerful creature that killed the last wielder and take the spear for yourself. The insipartions are variants of animals, far left is the base weapon with an eagle inspiration. Center is a wolf theme the serpent and a bear on the right side.
Weapons: Icebringer and Soulreaper
Quest: Frostmourne was shattered, but the first thing you are going to do is to go to Ice Crown Citadel and find and seek out the shards of the weapon after the battle with The Lich King. You will take those shards up and reforged them into a pair of rune blades.
Weapon: Fangs of the First Nightsaber, Different Form Customizations
Others Artifact Weapons that Blizzard is working on