That depends mainly on battery technology, and not the VR/AR technology and computing power in itself.AR-glasses also aren''t so lightweight yet that they are viable as everyday glasses.

Technologically, we're inches away from producing AR glasses that are relatively lightweight and have the processing power to be a great complement to the phone, since they don't have to produce full-scale realistic graphics.
But battery technology is a problem since it would suck to have them maximum twice the weight of a pair of reading glasses, but having to charge them every hour.