I started a topic about this a bit over a week ago, the implementation isn’t straight forward (from a modding perspective) to leverage the OVR SDK. After the initial implementation there would have to be a lot of changes to the UI, or at minimum, unglue it from the screen.
I am still looking into modding it, but I’m first trying to get used to how the engine works; there are people who have made the Rift work with source access to a pure Horde3D engine, but the devs have “heavily modified” Horde3D for Stonehearth. If you have modding/programming skills, we can continue discussion in that thread, I’m not above asking for help when I’m in over my head.
And as @Teleros mentioned, the devs have a lot of other things on their mind at this point, so don’t expect anything from them for quite a while.