We know that a new DualShock 4 with product code CUH-ZCT2U is coming down the line, and today a video was posted by ZRZ showcasing a controller that should indeed be the new model.
As you can see in the video below, it appears to have a second light bar on top of the touch pad.
While the authenticity of the controller remains to be proven, the purpose of the second light is unknown. It’s possible that it’s optimized for VR use, as users might tilt the controller down past the angle of detection of the camera, but this is just my personal speculation.
Update: unfortunately the video was removed, but you can see a full unboxing, including the new light bar here.