When the X4 was announced it was planned to be radically different from any other helicopter. Airbus has since changed course and will offer the helicopter with the Helionix suite, said CEO Guillaume Faury.

http://www.ainonline.com/aviation-news/2014-09-03/airbus-helicopters-reins-innovation

Is the honeymoon over for Airbus Helicopters and big innovation? Despite the news that the company will build a successor to the X3 compound demonstrator by 2019, Guillaume Faury (who was appointed CEO 16 months ago) seems to have a more cautious approach than his predecessor, Lutz Bertling, and some signs suggest the OEM will scale back its forays into brave new territory.

First, the X4, successor to the EC155/Dauphin, will be equipped with the Helionix suite rather than the radically new man-machine interface originally envisioned for it. "The X4 medium twin, to be unveiled next year at the Heli-Expo show, will share its avionics and autopilot with the EC175 and EC145T2," Faury said in July