If you look at past World of Warcraft expansions, it's interesting to see key focal points of each addition. The Burning Crusade, for example, really focused on emphasizing arena PvP without adding much in terms of battlegrounds. Wrath of the Lich King, on the other hand, was a little bit more balanced in its PvP focus, as it introduced the massive Lake Wintergrasp battleground while also bringing a few new arena maps for competitive fans.
Now, with Cataclysm set to come out at some time in the next year, the new PvP buzzword on everyone's mind is Blizzard's promised "rated battlegrounds."
Blizzard Entertainment has announced the opening of beta registrations for “World of Warcraft: The War Within,” inviting players to explore new subterranean worlds beneath Azeroth.
Danish from eXputer: "Despite Blizzard's attempt to give a fresh new spin to World of Warcraft, some fans still seem to be stuck in the past."
HG writes: "Blizzard is usually pretty bad at keeping secrets, but the company somehow managed to keep this one under wraps until now. Plunderstorm is a special limited-time event that’s basically World of Warcraft’s take on the Battle Royale genre."