“Due to the raid requirements in the quest chain leading up to the “Bang A Gong!” quest, the earliest that the gong-ringing can occur in Silithus on highly-motivated realms will be just over a week later.
“Once the gong is rung on a realm, the 10 Hour War begins. Once the 10 hours has elapsed, “Bang a Gong!” can never be turned in anymore, the two Ahn’Qiraj raids will open, and the “Treasures of the Timeless One” quest will become available.
“During the 10 Hour War, world bosses do not only spawn in Silithus. Resonating Crystals that spawn major enemies will appear in Tanaris, Feralas, Thousand Needles, and Barrens.
“This is important to know because we expect there to be an overcrowding issue in Silithus on realms whenever large groups of players all go to Silithus at the same time.
“While the negative effects of overcrowding can’t be eliminated, we’re taking several steps to mitigate the worst outcomes.”