If we look at the rumors at SAR, it says that Sony is developing a new camera with 8K capability and its body resembles to that of A99. It is said that Sony will release this camera in 2016.
On the other hand a new CMOS sensor from sony was revealed yesterday. Sony called its new sensor as the most highly sensitive sensor that captures colored images in even low lightning conditions up to 0.005lux. The sensor size remains 1/3” while the effective megapixel resolution stays 1.27.