I’m pretty sure this is a great news for those who plan on testing the Warlords of Draenor at PAXEast this year.
Blizzard just announced that they are going to give Beta keys tho those who will play Warlords of Draenor during this event. For the moment these keys are useless, but to quite Blizzrd, these are for future use.
— World of Warcraft (@Warcraft) April 11, 2014
We do not know when the beta is going to be available, there was nothing announced officially, but by the look of the Alpha, it will take a while.