Official release from Subaru
http://media.subaru.com/newsrelease.do?id=1067&mid=1
Highlights:
-Revised front styling for a more aggressive look
-Suspension optimized for better handling and ride comfort
-New 19-inch wheels, upgraded 6 piston Brembo® brakes and revised DCCD All-Wheel Drive give WRX STI wider performance envelope
-New available Recaro® power seats
-Performance Package option for WRX models
-New EyeSight® Driver Assist Technology safety features
-Upgraded interior materials and quieter cabin