The full release for the service is in August 2019, but before that happens, Blizzard wants to check that things are working the way they should be.
You can find more details, including the full dates and times for stress tests on Blizzard's website here but, for now, it's time to start thinking about what you're going to call that Gnome Warlock you've been waiting to role play as for years.
Blizzard President, J Allen Brack reminisced: "Building and launching World of Warcraft back in 2004 was immensely challenging".
The first stress test will run from Wednesday, May 22 to Thursday, May 23.
Starting August 27, you can jump into WoW Classic, a "re-creation" of the original MMORPG. While the stress tests won't be quite as limited as the beta itself, Blizzard makes the usual disclaimer that opting in doesn't guarantee access.
Following a public demo at Blizzcon 2018, Blizzard has now finally announced the launch date for Classic servers: they will be going live on August 26 for North America and the United Kingdom, and August 27 for the rest of the world.
WoW Classic is included for all subscribers at no cost, and those with an active sub can opt-in to the invite-only closed beta, scheduled for May 15.
Blizzard notes that the dates are all subject to change, and that players will need active subscription time to get into any of the tests.
"We may also consider additional factors such as how long a player has been subscribed to the game so that we have the right mix of players to ensure great feedback toward making WoW Classic the very best experience for the community".
It's also World of Warcraft's 15th Anniversary, and Blizzard is releasing a collector's edition to celebrate.
While the server will not be live until the end of August, players will be able to create their characters ahead of time on Tuesday, Aug. 13.