Sony Showed only select people last year at NAB there 4k Cinema with Laser.
If it is ready for CES they will be Showing the 4k home projector with the Laser Light engine, streaming from the 4k box.
The info is pretty hush about this stuff, and hopefully next week it will be shown.
There is also in the works a upgrade to replace XENON and UHP bulbs to laser. I don't know which models, but the light engine will be external and have fiber optics to the projector.
Take all this info with a grain of salt, as these things may take longer to come.