Several visuals associated with spells, objects, and items have been updated to use Warlords of Draenor visual effects.
Resurrection abilities can only be cast once on a dead player. Any other consecutive casts will result in an error message. The debuff is cleared once the player comes back to life.
Now automatically changes to the Presence appropriate to that specialization when switching between specializations. (Previously, switching specs meant the death knight had to remember to activate a Presence.)
Druids will now automatically shapeshift into the appropriate form when switching specs.
[Misdirection]'s cooldown no longer resets if the buff ends before the hunter has attacked a target.
The related buffs have been consolidated, with the total duration being 8 seconds regardless of any action taken (unless the spell is modified by Glyph of Misdirection).
If a pet is of a species or form that has a dance animation, an effect such as a thrown [Party G.R.E.N.A.D.E.] will cause them to dance. They will keep doing so until despawned (by distance, dismissed or flying away on your mount).
Pets automatically apply aura buffs when they spawn, which has their own sound effects.
[Maelstrom Weapon] now shows a growing visual effect to the player for every charge gained. Previously it was only visible upon reaching five charges. The five-charge visual effect is unchanged from the old visual.
The difference between mobs with green (easy) difficulty and your own character level has been increased from 3 to 5. For example, if you are level 10, level 6 and 7 mobs are no longer green but yellow.
Khadgar had his model updated, most obvious before the release of Warlords of Draenor in his appearance in Shattrath City.
Seat of Knowledge
Three new Lorewalkers have been added: Lorewalker Fu <Scenario Storyteller>, Lorewalker Shin <Heroic Scenario Storyteller> and Lorewalker Han <Raid Finder Storyteller> allow players over level 90 to queue for the content they represent.
Pets don't receive full health when they level up.
Battlegrounds and Arenas
Players can no longer queue for roles that are not appropriate to at least one of their current specializations. If the player joins the battleground while in a specialization that is not appropriate to their designated role, they will be switched to their alternate specialization.
The battleground Call to Arms feature has been removed. Players can still use the Random Battleground feature to gain extra rewards.
Players can now accept summons to queued battlegrounds and arenas while in combat or dead.
Random Battlegrounds no longer award bonus Honor and Conquest Points. They instead provide rewards in the form of Strongboxes.
Rated Battlegrounds and Arenas will have the same base Conquest cap.
A bonus Conquest cap for Ashran has been added.
Level requirements for existing battlegrounds have been adjusted to provide a wider variety of battlegrounds at lower levels.
Random Battlegrounds are now available at level 20.
Dampening now starts instantly in 2s when both sides have at least one healer.
The duration of Warsong Gulch and Twin Peaks has been reduced to 15 minutes (from 20 minutes), and the resource goal of most if not all resource race battlegrounds has been been reduced to 1500 (from 1600 or 2000), in order to better fit the new three-tier Strongbox reward structure.
Dungeons now have objectives displayed automatically. Completion of all objectives will mark the dungeon as complete and award a gold and experience bonus. Some dungeons have optional objectives that give gold and experience bonuses upon completing each optional objective.
Pristine artifact display auras are much more vibrant now.
Stair of Destiny
The Dark Portal no longer functions on the Outland side and can not connect with the Blasted Lands. The portal on that side now acts as a wall.
Another pair of Alliance and Horde mages have set up new, extra portals directly in front of the Dark Portal to Stormwind and Orgrimmar.
There is now a portal in the war room of Stormwind Keep. It is not usable and the two Stormwind Mages channeling the portal spell do not have any dialogue beyond default male and female human greetings.
A new area can be found in the hills, inaccessible by land-travel, south of the Mage Quarter. It is populated by mage-related tents and props, a high-definition gryphon nest, strange plants, and an inactive portal, but no NPCs or usable function at this time.
Archmage Nakada, a reference to the late Blizzard engineer, Ron Nakada, now teaches a class in outdoors Mage Quarter. "Volunteering" for his demonstration will grant a temporary transformation of your character and allow you to read additional dialogue options from him.
Unplanted soil at Sunsong Ranch are no longer all oriented in the same direction.
This change affects growing crops as well.
The boulders blocking the way into Mysterious Den have had their boundaries adjusted.
The Dungeon Journal now has a role tab, which explains the basics of the fight for tanks, healers, and damage-dealers. This is a bit more streamlined than the abilities section, which lists each spell in great detail and can be hard for newer players to scan for important parts of the fight.
When you move with the map open, it remains open but turns transparent.
Quest rewards have a small chance to be better-than-expected. Instead of getting an uncommon-quality reward, you have a chance for a rare or epic version. When this occurs, a special Toast message will appear in the center of your screen, similar to when you win gear via a bonus roll in a raid.