when will classic wotlk come out

As of right now, there is no set date for when Classic WoW will be released. Blizzard has said they are working on it and hope to have it out sometime in 2019, but that is subject to change. There is a lot of work that still needs to be done in order to get the game ready for release, so it is hard to say exactly when it will be released. Keep an eye on the World of Warcraft website and social media for updates on the status of Classic WoW.