After Samsung and HTC, Sony is now expected to bring Nexus edition of its flagship handset, the Xperia Z. AndroidCentral has claimed this citing sources inside Sony.
Nexus edition basically brings pure Android experience to the phones without any manufacturer tweaks to the user interface, which ensures that the device gets updated as soon as a new version of Android is launched. Notably, both Samsung and HTC have launched the Nexus version of their flagship products, Galaxy S4 and HTC One, recently.
However the report did not talk about potential launch date or about markets where the phone will be launched. If you want stock Android on your existing Xperia Z you can do so, as Sony has released the Android Open Source Project (AOSP) based system update with vanilla Android experience with the Xperia Z smartphone. Of course, this AOSP for Xperia Z is meant only for advanced users and developers. You can read more here.
Sony Xperia Z comes with a 5 inch display with full high definition resolution. It is water and dust proof too. The Xperia Z has a Qualcomm 1.5 GHz quad core chipset which is supported by 2 GB RAM. The smartphone has Android 4.1 aka Jelly Bean operating system, 16 GB internal memory, 32 GB expandable storage slot, 2330 mAh battery, 13 megapixel rear camera with LED flash, and a 2 megapixel front camera.
The rear camera of Sony Xperia Z can capture high definition videos and has many innovative features like auto focus, burst mode, face detection etc. You can read a review of the phone to know more.