Today there was a surprisingly comprehensive development update for the Airfoillabs King Air 350, the status update revealing that most of the work on the upcoming add-on has apparently been completed. For example, the texturing including PBR implementation as well as the animations on the exterior model and the interior model or the electrical system and the basic flight model. Currently, avionics, fine-tuning of the flight model and much more are still in progress. The detailed list and lots of other preview screenshots can be viewed here.