New Sony DT 16-80mm F2.8-3.5 G SSM patent spotted?

We from SonyAlphaRumors already told you that Sony plans to update many of their lenses. One of the lenses that could be update soon is the Sony 16-80mm f/3.5-4.5 Lens. Sonydslr.com found a patent of a new version which is a half stop faster f/2.8-3.5. The question now is….how long do we have to wait for the lens? Photokina in September?