Sony's "4K Camcorder with 1″ sensor"— that is its actual name!—shoots up to 4K video, at up to 120 fps, in the new XAVC-S codec. It has a Zeiss lens with 12x optical zoom, active image stabilization and WiFi.
Aside from the 4K resolution, Sony's 1″ sensor (as in its hailed RX series of point-and-shoots) is an interesting upgrade: significantly larger than most fixed-lens camcorders and roughly the size of 16mm film. If they got the details right, this could be an interesting addition to the low end indie-film arsenal as well as a nice toy for spendy consumers. It's $2,000.