Check out this "teaser" on the Carl Zeiss site, implying a new Z[x] mount for CZ's premium, manual-focus, single-focal-length lens series. Mounts already available: Nikon F (ZF), Pentax K (ZK), and M42 screwmount (ZS).
Any guesses? (While possible, I wouldn't get my hopes up for Canon EF, all you Canon fans. Then again, I've been wrong in the past.)
Mike (Thanks to Mike Jones)