The future versions have unlimited possibilities such as automatically recording live events then replaying them, playing games, taking inventory, or even overlaying TV shows on top of screens at a bar so that you can effectively watch whatever you want. Infrared, night-vision, and auto-tracking of objects are also possibilities.
The military has had such a system for many years, it's called Land Warrior. It can map waypoints in a 3d environment, give directions, display messages, and display any information that the user needs. I imagine that in the near future the system will be able to identify hostiles or friendlies, detect mortars instantly and tell the user where to move, and will be integrated with the boomerang shooter detection system.
The possibilities are endless, we have to start somewhere though.