Last night, Blizzard opened up the NDA floodgates of a recent press event, where attendees (including our sister site WoW.com) learned of a few more changes the upcoming Cataclysm expansion will visit upon World of Warcraft. The game's big dungeons and raids? Those are changing. The classic zones which were ruined by the titular Cataclysm? Those are getting changed. Even some of the big changes which were announced last year are changing. It's a lot to take in.

We suggest checking out WoW.com's write-up on the new content, such as the Guild Leveling system and the new secondary Archaeology profession. We'd also suggest listening to some appropriate tunes while you do so, but that part's entirely up to you.

This article was originally published on Joystiq.