I don t want to give fake hope for no one, but if the cave engine bring full support to web, depending of your know about webgl, will be possible be made connection with web tecnologies like webxr, I am seen one case of third party development of webxr from web exportation from one another game engine that don t have anymore native support to vr, but have web exportation. But how I said for this happen will depend from many things involved between cave game engine and who will try to develop the support for this system.