Are the sounds for Star Citizen going to be positional, and will they work with 5.1, 6.1 and 7.1 processing?

Yes. I would say 90% of the time they're all positional sounds based in the level. So if you move your head around, you can actually understand where those sounds are coming from. And regarding 5.1 and 7.1, that's all handled in Wwise itself. Since the audio is already positional, for Wwise it's not difficult to understand. If you have a 5.1 system, it will always be 3D, so it will start going around your speakers.