In a recent press event in Japan for the unveiling of the new Touit lenses, Zeiss showed an updated roadmap that in addition to the existing ZM, ZF/ZE/ZF.2, the not yet released high end DSLR and Touit lenses, also had a fifth unnamed product line marked with a question mark. Maybe this will be a new line of lenses designed for Micro Four Thirds or medium format cameras. Last year Zeiss said that they will not make Micro Four Thirds lenses because the m4/3 sensor is too small.