In 2010, CES was all about 3DTV. I thought 3D would flop, or more prosaically, rapidly commoditize as just another feature in a flat screen TV. That certainly was what has happened.
The breakthrough would be to remove the 3D glasses, which is technically feasible as TV processing speeds up, but is just a lab project right now. On small screens I have seen a polarized approach to glasses-free 3D, especially to spice up videogames. Now the polarized approach is being tested on larger screens. A cheaper approach, but also years away, and in the demonstrations I have seen, an approach wtih a very narrow range of viewing (a small sweet spot for the 3D effect). The other method, using faster processing, would create multiple decent viewing angles.
In either case, not likely to hit CES until late this decade. Instead, the Next Big Thing is 4K TV - HDTV at much higher resolution. We should see multiple demo units at CES 2013.