Bah it will release when it is ready. What most people do not understand is Debian isn't just for i86 like most other distros, instead Debian supports several architectures.
Debian -- Ports
http://www.debian.org/ports/
So the many developers have to make sure it is bug free on not just one but many other ports.
Plus the fact that when it releases it really is Stable. Unlike other distros that push to release by a certain date or that have a set release schedule.