I really can't buy into this reason because they used to do beta without the subscription requirement. It seems like if they want to test how many people are interested, they can just open it up to everyone like they do for every WoW expansion. And how are they going to know how many servers they need for all the people without a subscription who can't reserve a name or qualify for beta?
Good news, Warcraft fans – WoW Classic‘s release date has been revealed as August 27, and an invite-only closed beta test will begin tomorrow, May 15. Current World of Warcraft subscribers can opt-in to an invite-only closed beta test. This is the first firm info we have been given on World of Warcraft Classic since we first reported on it back in March of this year.