catflap oh BOI! You have no idea the stuff that's coming! But much of it can take a long time because of cost, though many of the tech and proof of concepts already exists. Not just the XR, but also for tactiles!
ie there exist two techniques already for multifocal VR. Which also uses eye-tracking to realize the implementation. One of them is doomed to fail though imo because it's mechanical, the other is digital.
Then there are different rendering techniques that render everything in 3D, like a game does. They are not images (pictures)
Full body tactiles without having to wear anything. (Uses supersonic sound 'canons' ). Fabrics that can move realistically and do not use any kind of motor, so it will even be silent!
Holograms you can TOUCH (and feel and hear). Is a more advanced implementation of the supersonic sound.
That's off the top of my head, I would have to look everything up.