Thanks to this post, I put myself and my wife's account in the lotto. Yesterday, my wife received her Beta invite (which means I get to play because she has no desire).
This is proof that Blizzard is doing a random lotto. My wife has never been guilded and hasn't logged into WoW in over 60 days. Her highest character is a level 67 Hunter, who has less than 1/4 time played as my druid.
It looks like I'll be trying out the DK class instead of a feral druid like I wanted, but it's a decent consolation prize
