World of Warcraft: Burning Crusade Classic—Pre-Patch Date, Official Launch, and Cloning Feature "World of Warcraft" players need to look out for some exciting new content in the "Burning Crusade Classic" expansion. Photo : Dia Dipasupil/Getty Images for ReedPOP "World of Warcraft" players need to look out for some exciting new content in the "Burning Crusade Classic" expansion. Although some players might argue that the patch is a few weeks too early from release, "World of Warcraft" confirmed the expansion would be happening on June 1st. There are a few things to keep in mind before the start of the event. First, when the Dark Portal from the "Burning Crusade Classic" goes live, players will be forced to decide on moving existing characters to the new servers or keeping them in the "World of Warcraft" servers.