Upon hearing that Odyssey would not support VR at launch, I determined that I would hack something together. And so I did. As was my method with Arma 3, I wired the HMD attidude to TrackIR output using OpenTrack ( https://github.com/opentrack/opentrack ) and used BlueSkyDefender's Depth3D shader to render it as Side-by-side 3D, which I then piped to the HMD using Virtual Desktop. This was less than ideal, but after a couple weeks shelving the idea I realized that the game supports side-by-side 3D natively anyway, which works much better. Virtual Desktop is paid software, unfortunately, and moreover only supports direct-to-headset rendering in a legacy version of it, but it's the best I've been able to find. Nonetheless, some cursory testing was done and it performs satisfactorily for both on-foot and in-ship gameplay.
TL;DR: TrackIR + SBS 3D = VR. FDEV, try somewhere.