World of Warcraft Battleplan

Blizzard Entertainment lead producer Shane Dabiri has posted a World of Warcraft "Battleplan" in the game's official forums. In it, Shane talks about the major updates that have been released for the game since its launch and what updates we can expect to see in the future. He even mentions the unofficially announced expansion:
We are committed to delivering the highest quality online experience for our players. Some of our upcoming plans have already been mentioned on our community site. For example, in our next major update, we will be releasing Blackwing Lair, a 40-person raid dungeon, where you will be able to battle against the epic dragon Nefarian and his minions. We are also working on a 20-person dungeon called Zul'Gurub, and the mysterious lands of Ahn'Qiraj in Silithus. Outside of dungeons, we want to continue adding new world events, such as a carnival that will take place in Mulgore and Elwynn forest.

Of course, on top of all this, each content update will also bring new quests, items, professions recipes, and continued class improvements. Some have asked about an expansion and what it might hold. I wanted to let players know that it is in the works, and we'll release details as soon as we can.