This might be a little crazy….
…but all of these are readily available technologies, so it’s definitely doable. Just imagine these things combined with one another:
3D video card and glasses:
Wii remote and IR blaster mounted on the glasses for head tracking (so that the perspective changes depending on where you’re looking):
Curved rear-projection hemisphere (mini-imax screen):
Do you see where I’m going with this? At first glance it seems a little “blue sky,” but thinking it through, I don’t really see any barrier to making a fully immersive 3D simulation of Horizons. The only down-side of course would be that it could only be experienced in person, one rider at a time.