In addition to the a7 II camera, Sony announced also a new 70-300mm f/4.5-5.6 G SSM II lens (SAL70300G2) with a minimum shooting distance of 1.2m and 4 times faster AF tracking performance compared to the current SAL70300G model. Shipping will start on February 28th, 2015. The Japanese price is 132,000 yen (around $1,100).
Sample photos and lens MTF charts can be found here.