Definitely not the same as the 14, I would consider completely new suspension a relatively big change. But here is the list of changes from transworld:
New machined cross tube in the frame that provides a stronger more accurate connection of the frame and the linage due to an improved production process resulting in a 60 gram weight reduction. The frame is now powder-coated in KTM Factory orange
• New linkage geometry with an improved rising rate, better control, stability and balance
• For the linkage there is now an improved production process for higher quality resulting in a 40 gram weight reduction
• New WP 4CS fork specifically designed for Motocross
• New fork lugs with a 22mm front axle for reduced weight and better feel along with a 2mm reduced off-set for improved handling
• New fork protectors with an open design, which are easier to replace for better maintenance and cleaning of the fork leg
• New monoshock setting, which has been re-valved and set-up to match the new linkage and fork. The shock features a 4mm increase of shaft travel while maintaining the same amount of wheel travel with the new linkage package
• New Dunlop GEOMAX MX52 tires for excellent traction in all conditions
• New aluminum o-ring support for the lower bearing on the steering stem for a weight saving of 22 grams and a new steering stem bolt, which is also 8 grams lighter
• New high-quality black colored Excel rims for aggressive looks and top performance
• New softer two-compound grips