Keep in mind that as with anything still in development, the information we share now will likely change as we progress, but this should help give you a good understanding of our goals and thinking.
Armor Pieces: Head, Shoulders, Chest, Legs, Gloves, Belt, Boots, and Bracers
One of our main intents for primary stats is to make sure that higher Item Level (ilvl) pieces from new content are almost always superior to items from older content. Further, the changes we’re making to primary stats will help make pieces more universal, so groups will find gear drops more useful more often. This means you’ll be disenchanting less Intellect plate (only usable by Paladins today) or Agility mail (only usable by Hunters and Enhancement Shamans today). As we discussed at BlizzCon, we’re accomplishing this by making it so primary stats for a given piece of gear will change based on your current spec, though it’s likely that only new gear added in Warlords will work like this, as it might be impossible to implement this for all existing gear. Here are some additional points to know regarding the changes to primary stats:
Our intent for secondary stats is to differentiate pieces that occupy the same slot, allow for player customization, and to further differentiate specs within a class. Here are a few important points regarding the changes that are currently planned for secondary stats:
Armor pieces may have three other properties at random. First, items may be higher Item Level than normal. For sake of this discussion, we’ll call these items Warforged for now.
Second, items may have gem sockets. Unlike gem sockets today, gem sockets in Warlords of Draenor will be rarer but more powerful. There will be no socket bonuses, but we are strongly considering requiring the right color gem for the socket. All gems will grant secondary stats, including Spirit and Bonus Armor (see below).
Finally, items may have tertiary stats. These include things like a bonus to Movement Speed, Sturdiness, Life Steal, Avoidance (less AoE damage), and Cleave. Because of the rarity of tertiary starts, stacking them to produce (for example) a Movement Speed set will take enormous effort.