There is also a Canon Professional Network article about the new CINE-SERVO lens:

Canon has expanded its Cinema EOS System with the launch of the CN7x17 KAS S – its first-ever cinema lens to feature a servo drive unit, designed for broadcast and handheld use with large sensor cameras.

The CN7x17 KAS S has been created for the world of TV production – a fast-paced, mobile environment for which conventional Super 35mm format cine lenses were not designed. To support operators in this field, Canon’s new cine-servo lens combines decades of experience in the design of market-leading broadcast lenses with technology derived from its high-performance cine zooms – creating a tool of unprecedented quality, versatility and usability.

Canon press release:

New Versatile CINE-SERVO Zoom Lens from Canon Provides High-Optical Performance and Operation for ENG, Documentary and Narrative Productions

New Canon CINE-SERVO 17-120mm T2.95 Zoom Lens Features 4K Optical Performance, a Dynamic 17-120mm Focal Length Range, and Removable Digital Drive Unit for Cine-Style or Shoulder-Mounted Operation

MELVILLE, N.Y., April 2, 2014 – Shallow, creative depth of field, high-resolution and optimal low-light shooting capabilities are just some of the many reasons that large, single-sensor digital cameras have been kitted and rigged for use in nearly every application involving video capture. Further enhancing the versatility and adoption of these cameras into markets such as ENG (Electronic News Gathering), documentary, narrative production and special event coverage is the new CINE-SERVO 17-120mm T2.95 zoom lens from Canon U.S.A., Inc., a leader in digital imaging solutions.

Designed to perform in a shoulder-mounted application or as a traditional cinema lens, the Canon CINE-SERVO 17-120mm T2.95 zoom lens has an ENG-style Digital Drive handgrip with zoom rocker switch, which can also be detached to allow for manual cinema operation. The new CINE-SERVO lens features high 4K optical performance throughout the broad focal length of 17mm to 120mm within its compact and lightweight body, a three-group inner focus system to help minimize focus breathing and provide a stable angle of view, an 11-blade iris to help achieve creative depth-of-field manipulation and natural “bokeh” background, user-friendly design features, support for matte boxes, follow focus and other accessories, and rugged reliability. Designed to work with single-sensor cameras, the lens will be available in either PL- or EF-mount.