Zeiss just announced the new Lightweight Zoom LWZ.3 21-100mm/T2.9-3.9 T*. it has an interchangeable mount system and can be fitted onS ony E-mount cameras too. Zeiss writes:
Calibrated scales, consistent imaging quality across the entire image field, no vignetting and focus shift, the efficient reduction of reflections through the well-known ZEISS T*® anti reflective coating and the color matching with lenses of the Compact Prime CP.2 family complete the overall package.
The ZEISS LWZ.3 will be available from the end of January 2017 at a retail sales price of EUR 9,900 (incl. 19 % VAT), or USD 9,900 (excl. VAT).
More info at Lenspire.