See, that's something I'd love to see.
As a flight-sim fan, being able to move to VR would be a complete game-changer.
Trouble is, like most flight-sim fans, I also aspire to a proper sim-pit full of switches, knobs and levers.... which you can't see when you're using VR.
If there was some way to accurately track hand position (some kind of funky gloves, pehaps?) then that'd really be a step forward.
Given that most sim-pits tend to either be generic or "in the style of" a particular aircraft, I guess that "calibrating" a VR hand-tracker would be a complete nightmare though.
Seems like the game-dev would have to make the in-game "cockpit" completely configurable or the player would have to build a sim-pit to be a fairly close approximation of the in-game cockpit.
Personally, I suspect a better real-world solution would be to pursue some kind of "Augmented Reality" system whereby the VR headset either has a HD camera built-in or uses clever lenses so that looking down allows you to see stuff in the real world and looking straight ahead fills your view with the in-game display.
Doing it using VR hand-tracking would be amazing, though, if it was 100% reliable because it'd mean you could create a sim-pit with no functional controls at all.
You'd be able to just cobble together a pit using all sorts of non-functional switches, knobs and levers and not have to worry about connecting them up to controller boards because the flight-sim, itself, would recognise what controls you were activating from the hand-tracking movements.