We've datamined new icons on the Patch 11.0.5 PTR, including those for updated covenant abilities, Tier 2 armor sets, cosmetic items, and more coming in World of Warcraft's 20th Anniversary Update!
Mounts, Pets, and Toys
Blizzard Phoenix Mount
Balloons
Doomguard Pet
Covenant Abilities
Demon Hunter Elysian Decree
Demon Hunter The Hunt
Druid Adaptive Swarm
Druid Convoke the Spirits
Evoker Greater Echo
Hunter Death Chakram
Mage Radiant Spark
Mage Shifting Power
Monk Jadefire Stomp
Monk Weapons of Order
Oracle Priest Clairvoyance
Priest Mind Games
Paladin Divine Toll
Rogue Echoing Reprimand
Rogue Flagellation
Rogue Sepsis
Shaman Primordial Wave
Warlock Soul Rot
Warrior Champion's Spear
WC3 Faction Crests
Cosmetic Weapons & Armor
Blizzard Phoenix Employee Armor
Tattered Armor
Earmuffs
Winter Veil Weapons
Tier 2 Sets
Death Knight
Demon Hunter
Druid
Evoker
Hunter
Mage
Monk
Paladin
Priest
Rogue
Shaman
Warlock
Warrior
Misc
Blizzard Phoenix Ring
Solo Shuffle Pennant Reward
Numbers
Warbands UI
Classic Weapons
Curiously, we've also found icons for several of the class-specific weapons datamined in Phase 5 of Season of Discovery, though this does not necessarily mean they will appear in The War Within.
Rogue Knife
Shaman Shield
Warrior Shield
Ancient Staff
Hunter Sword
Paladin Sword
Read more on wowhead.com