Also, the WoW Game Systems panel at BlizzCon released a bit more info (including a statement that they're not planning on supporting a guild alliance system), which I'm quoting from WoW.com's liveblog:
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11:44 - Guild Advancement now
They want people to be in a guild. The game is more fun when you're in a guild.
Players earn guild experience in a variety of ways.
You can level your guild up through 20 levels of guild leveling.
Killing a boss, rated bgs, areans, profession, and reputation ranks will all help level the guild.
To get credit for a boss kill, you need to have 75% of the people in the group be from your guild to earn leveling experience for your guild.
Each time you gain a level, you'll earn talent points. Each point will be placed in the guild talent tree. The guild talent tree will apply to everyone in the guild.
Guild talents will be like mass rezs and reduced repair costs.
Ex talents:
Everybody's friend: Removes the reagent requirement for raid wide buff spells
Cash flow: increases: the gold drop rate by 7% for all kills from creatures or players that reward experience or honor.
Another example: Summon your entire raid instantly!!!
These guild talents will be retalentable. You can respec your guild.
The crowd is loving this.
11:48 - Guild experience is converted into guild currency.
Things like a guild standard that will have flags from your guild on them.
11:49 - Guild heirlooms will be bought with guild currency. Variety of these types of items: mounts, tabards, etc... If the person who buys the plans leaves the guild, they don't get to take the recipie with them. We don't want people to bounce around from guilds very much.
11:50 - Players can buy these heirlooms plans from vendors in major cities.
11:51 - Heirlooms will be bound to the guild. If you leave the guild, the bound item will be automatically be returned to the guild bank. No more people leaving the guild and taking amazing items.
11:52 - New reagents are bought from guild vendors via guild currency.
Talents will be in the guild tree to increase effectiveness of flasks, potions, etc...
Instead of using a frost lotus, you can buy a reagent and use that instead.
11:53 - Next up, Looking For Guild system.
Blizzard guild in this example is called "Warriors of Time"
[IMG TO COME: UI of Looking for Guild system!]
11:54 - Next up Guild Achievements
New achievements will be done for this system. Some old achievements will be made into guild achievements.
Examples of Guild Achievements:
Have a grand master in every profession.
Obtain a legendary weapon.
[IMG TO COME: UI of Guild Achievement System]
11:56: Guild news feed, RSS to armory!
We'll show the last two to three days of the last thing that has happened to the guild. Guild UI is getting completely redone. Everything will be linkable. It will be filterable.
11: 57: We'll be providing access to guild member profession info. You can look right into guild member's profession books.
11:56: Guild Bonus, % of gold looted off bosses goes directly into the guild bank.
11:58: New UI will let you invite other guilds to events. This will be great for pug raids.
[IMG TO COME: UI of Guild News and Guild UI]
Crowd is cheering for Ghostcrawler.
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Q: "Is there going to be a guild alliance system?"
A: "No, we're currently not planning on supporting a guild alliance system."
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Q: "Are you going to support a guild merger?"
A: "You have to choose which guild you go into, but you'd have to leave the first guild and go into the second guild." GC: "We're going to support all types of play styles, not just from guild raiding."
Q: "Are there going to be guild talents raiders want to have?"
A: "We're not going to be character talents in the guild talents. We don't want to put talents players have to have in the guild talents, ie: they have to have this talent in order to kill this boss."
Q: "Are bank slots going to be bought with guild currency?"
A: "We're discussing it." "We're also discussing a paid guild transfer service, to move your entire guild to a new server."
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