The biggest change you are going to find is the camber profiles. Regular camber is not much of an option. Some sort of mixed profile is what you are most likely to find. Camber-Rocker-Camber, rocker-flat-rocker, rocker-camber-rocker, etc. Each profiles does things great and lessens on others. Most of them are all good in deep snow. Turning, speed, stability, all vary with the profiles. I'd really suggest trying to demo some Boards. Venture, Neversummer, Lib Tech, Arbor, k2, all have good takes on the rocker revolution. Signal, Yes, Smokin', are some other guys worth taking a look at. In fact most companies have some sort of play on the design.
See what you like and it'll help you narrow down your choices. Overall, I am pretty pleased with the new designs, I personally think the boards are much more fun to ride. Some people still like the traditional camber profile too.