Its more idea for Oculus Rift dev's and not for CDPR. So far looking on supported titles of OR it doesnt look all that good.
I suggest who ever is interested in this idea go to Oculus Rift forums and try to convince someone to send CDPR the devkits and come with some good partnership deal.
It will be difficult if game will be in 3rd perspective. If game will allow you to zoom in to first person its a matter of patching the game.
The devs have to support it as well, all the Oculus guys can do is set up the on-screen rendering side, not the gameplay/UI/graphics side. Take a look at Hawken, made to support Rift, it has almost zero 'floating' HUD, most of it either renders as an object in the cockpit or as something like a fighter jet's HUD.
FPSes and RPGs have more problems, floating head and arm viewmodels, flat textures, and improperly scaled models/characters won't feel right in VR.