Google unveils Japanese pricing for Nexus 6 on Japanese Google Play 
The release date hasn't been stated clearly. It says soon-to-be-released.

DAIMAOU - G.G-B - February 05, 2014

The first red Nexus 5 device is now available on Google Play. Nexus 5 is the first Google phone to be offered in three colors: red, white and black. Launched last October in partnership by LG and Google, Nexus 5 received praise as a stylish, high-performance Google phone. Nexus 5 is equipped with a Qualcomm Snapdragon 800 processor, a stunning 5-inch Full HD IPS display and runs Android 4.4, KitKat, the latest version of the Android OS.