Don't get your hopes up. Sixaxis wasn't used for anything notable on the whole. I doubt DS4 motion is going to amount to more than that.
DualShock 4 motion sensing is closer to PlayStation Move than to DualShock 3.
I said potential because I know most people like to stick to what's traditional. But with the DS4 motion sensing being high fidelity some controls will just work better using the motion sensing over using the D-pad or Analog sticks especially if they are already being used for something else. The touchpad & motion sensing in the DS4 are actually better controller technologies than the D-pad & analog sticks in a lot of cases but console games are built around D-pad & analog stick controls & it's what we are used to. I'm just saying that with these inputs PS4 has the potential to change console gameplay .
I'm not saying it's the best control method ever for all situations but it frees the devs up from the limitations of analog sticks & dpads. If there is gameplay situations that would work better with a touchpad or motion sensing these control methods should be used over trying to map the controls to analog sticks & dpad presses.