Once this patch is deployed, the following content will be disabled or removed :

　　The Atiesh quest-chain will not be completable anymore.
　　The Bear Mount from Zul'aman will no longer drop.
　　The Onyxia quest-chain has been removed from the game.
　　Naxxramas is "removed" from the game and moved to Dragonblight. (Unreachable until WotLK, obviously)
　　The ability to get titles related to Tier 4 or Tier 5 content is being removed. Of course, players who got them before the patch keep them. (Hand of A'dal, Champion of the Naaru)

　　当补丁正式在服务器上线时将移除以下内容：

　　橙杖埃提耶什作古，任务线将不能再完成。
　　祖阿曼熊作古，不能再掉落。
　　黑龙公主奥妮克西亚开门任务移除。
　　纳克萨马斯飘到北极的龙骨荒原。
　　阿达尔之手和纳鲁的勇士头衔不能再被获得，当然，之前有头衔的可以保留头衔。

　　Also, a few things are being changed or added :

　　Barbershops are now available in capital cities !
　　The amount of experience needed to level from 60 to 70 has been lowered.
　　New graphical effects are being added to the game, including the new shadow engine
　　The Stormwind Harbor will be available, but you won't be able to travel to Northrend until the release of WotLK. However it does have a working boat travelling between Auberdine and Stormwind.
　　The Caverns of Time have been slightly modified to add an entrance for CoT: Stratholme. The instance itself won't be available before WotLK, only the entrance is being added.
　　Mounts and Vanity Pets are now trainable spells and the old items will be used to teach you these spells. Once a mount or pet is learned you can access it through the Character Panel.
　　Various tokens like Badges of Justice or Honor Points are all merged in the new Token Interface. It will also remove the Badges of Justice and PvP Tokens from your bags to free up even more space !
　　The in-game Calendar used to schedule raids or events between your friends and guildmate will be available by typing /calendar

　　当然一些新特性也将加入：

　　所有主城将出现理发店！
　　60－70升级经验减少。
　　新的图像特效，包括新的阴影引擎
　　暴风城港口开放，当然你现在不能坐船去北极，但是，现在有一条暴风城到奥博丁（黑海岸）的航线开放了（作为一个NE我泪流满面）
　　时光之穴出现旧斯坦索姆的入口，但是你现在进不去
　　坐骑和宠物现在整合进了专门的面板。直接使用就可以学会召唤他们的法术。
　　所有的牌子系统整合进牌子面板。
　　游戏内日历开放。

　　Still need to be confirmed :

　　Achievements might be added to the game, but I don't think there is any confirmation for the moment.

　　需要被确认的部分：成就系统到底有没有加入。