I feel like everything that can be done in VR(office environments, motion controlled games, art(tiltbrush is cool), communications) can be done just as well in AR, but with more realism(interacting with known environments) and less motion sickness.

In terms of AR only things, I feel like Ingress is the direction AR games will go, with phones as a window into another world, and I've had lots of fun with the measuring apps which came out with arkit(my favourite is called Cubit, if you have an iOS 11 device).