Currently it's not listing any realms, but if you log on to the live auth server right now, it will present you with the realm finder tool we're all use to... but instead of Oceanic and North American options it says development.
Picture here
Seems a carry over from some form of internal testing used for the latest server revision. So I expect this means server side hot fixes coming this restart as well. But that's beside the point.
This most likely won't last for long, as servers will begin coming up any time now. Just thought I'd tell everyone, whether it be useless or a use is found, though I see none.