The Sony Xperia Z2 will be a 5.2-inch IGZO Triluminous Display with a 500ppi pixel density, Qualcomm Snapdragon 800 MSM8974 processor and 3GB of RAM.
The rear-facing camera is expected to be 20.7 MP ,support 4K video capture, and the battery 3200mAh. The Z2 should ship with Android 4.4 KitKat.
Not available for at least another 6 months.