FlightFactor, a developer of well-known A320 for X-Plane 11, today announced via their Twitter page, that their A350 will get an update soon in which we will finally get SID/STARs and a huge graphical update. There is not much we know, but we got some screenshots previewing the new cockpit modelling and texturing, and showcasing the new SID/STARs feature.
This could be considered as a very important update since the lack of SID/STARs is probably the main downside of the aircraft. FlightFactor teamed up on this update with ToLiss. This update will be part of the v1 and current owners will not be charged.