You won't hear Sony calling it the new NEX-6, but that's what the mid-range Alpha 6000 is. That's because Sony is dropping the NEX name from its range of APS-C mirrorless system cameras, everything from its DSLR cameras to mirrorless cameras are going to carry the Alpha title from now on.
The Alpha 6000 boasts faster autofocus (Sony, like everyone else, says "world's fastest") with 0.06 second accuracy. The new AF system covers 92% of the frame with 179 phase-detect points, and promises subject tracking at 11 frames per second, which would be quite incredible if proven true. It's definitely an upgrade from the NEX-6, which had 99 phase-detect points covering only 50% of the sensor. You also get more megapixels, from the NEX-6's 16MP resolution sensor to the A6000's 24MP sensor.
The one way the A6000 falls behind the NEX-6 is in the smaller electronic viewfinder, whereas the NEX-6 had a OLED EVF with a 2.36m-dot resolution and 0.73x magnification, the A6000 has an OLED EVF with a 1.44m-dot resolution and 0.7x magnification.
Sony says the A6000 will be available in Asia from March onwards, the local pricing and availability has yet to be announced.