Eurogamer writes: "Amid the deluge of information on World of Warcraft: Cataclysm released at BlizzCon this weekend were a few morsels on the content and changes coming in future patches. The most interesting were at Saturday's dungeons and raids panel: a preview of Icecrown Citadel, and news that Blizzard will introduce cross-server dungeon grouping.
The latter feature will be implemented for five-man dungeons at first, although the technology does support larger raids too. It will work much like the current queue system for player-versus-player Battlegrounds, and draw players from the same pools of servers in their region, known as Battlegroups."
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