Sony has been making waves with the impressive Xperia lineup. Looks like they are not going to stop anytime soon, specs for the Xperia Z2 codenamed Avatar have leaked:-

5.2-inch IGZO Triluminous Display with a 500ppi pixel density

Qualcomm Snapdragon 800 MSM8974 processor

3GB of RAM

20.7 MP rear-facing camera with support for 4K video capture

3200mAh battery

Android 4.4 Kit Kat

The Xperia Z2 is expected to be released at CES 2014 which is to be held from January 7-10 next year.

Source:-talkandroid