I seem to remember this being the plan as well. In addition, recent posts by Soken (on his Twitter account) and Yoshida (see the quote below) indicate that the team has hit crunch time finishing the alpha client.
Yoshida responded to a fan asking if he would be at Tokyo Game Show with the following post. (Translation in blue, my notes in green.)
My guess is that the alpha will launch for a few lucky people in Japan in October. But hey, if I'm wrong, I'm wrong.![]()