The latest cameras announced by Sony are the Sony A7 and A7R, but if you're looking for an A-mount camera, Sony Alpha Rumors reports that according to their sources, they have been tipped that Sony will be announcing new full-frame and APS-C A-mount cameras come Q1 2014. At this point not much else is known about these cameras, but apparently the full-frame models could reuse the sensor found on the A7 and A7R, while the APS-C model could utilize an improved 24MP sensor.
Ubergizmo , New Sony A-mount Cameras Rumored For Q1 2014, New Sony A-mount Cameras Rumored For Q1 2014