Not talking about legs of course. We all know this could be tricky and complex. Many agrees that a delayed compatibility for Legs would be necessary.
But about flying and exploring atmospheric planets with our ships and SRV might not be that complex. I understand a developer like FDEV does not want to release partial compatibility at this stage (VR for atmospheric planets only at launch), but they should probably reconsider their position since this would fit with many VR players request.
Source: https://www.youtube.com/watch?v=vN2BWY872M8&feature=youtu.be&t=562
But about flying and exploring atmospheric planets with our ships and SRV might not be that complex. I understand a developer like FDEV does not want to release partial compatibility at this stage (VR for atmospheric planets only at launch), but they should probably reconsider their position since this would fit with many VR players request.