For the first time this year, Blizzard introduced the BlizzChat: Community Live!, a neat little side event where anyone was welcome to come in and debate various topics of the game alongside a Blizzard moderator. The intent of this new "panel" was to bring the internet forums to life, in a sense, and allow the players to openly bounce ideas back and forth between each other with a direct line of communication to Blizzard present.
Although it wasn't as glamorous as having Ghostcrawler down in the trudges, the feedback that was being tossed around was taken seriously by Blizzard and the discussions themselves were highly informative. The discussions were so engaging that I ended up missing several of the panels down in the event proper that I had planned on attending, simply because the other players present were that engaging. Topics ranged across all spectrums of the game, from achievements to professions, PvE balance to PvP tactics, leveling and questing to the lore of the game itself.
There was a lot of skepticism about hosting this type of forum and to how effective it would actually be, but I can attest that there is nothing better than a room full of players from all walks of WoW actually talking about their gaming experiences and the changes they would like to see for the game.