They didn't reveal what the console will look like, I'm guessing they are waiting for E3.
DUALSHOCK 4 adopts the familiar form factor of the DUALSHOCK 3 wireless controller with some key enhancements:
Motion control is enabled by a new highly sensitive six-axis sensor
Dual analog sticks fine-tuned for better precision plus improved surface materials and shape for more delicate manipulation
L2/R2 buttons on the top of the controller employ a curved design for easier, smoother interaction
A new “Options” button combines the functions of the DUALSHOCK 3’s “Select” and “Start” buttons for operating in-game menus