On August 8th, everyone with active game time on their account gets to test out Classic servers for, I'll assume, approximately 24 hours. I'm guessing here since an ending time is not listed. Also, maximum character level will be set to 15.

The minimum specs are also incredibly low, so everyone worrying about running multiple game clients on their somewhat older hardware will be able to test that out during the upcoming test (again, if you have multiple accounts active).

https://us.forums.blizzard.com/en/wo...m-specs/239621