There is not currently a definite release date for the cameras. There will apparently be a pre-order phase to reserve the camera before it is released. If you go to the RealSense section of the Click online store then you can use the Notify Me button to register to be informed when there is an update about when they will become available.
https://click.intel.com/realsense.html Intel® RealSense™ Developer Kits
