I want this too., but it will have to happen after 1.0.
It’s not as simple as it seems either. Say I’m listening to music in kitchen and my wife is listening in the living room. If we’re about to head out and I walk around pausing the different zones (or selecting “Pause All Zones”), we probably want to make both queues available in ARC once we get in the car.
So the app might need to make “Kitchen” and “Living Room” queues available in ARC in a way that’s clear but which also doesn’t blow away whatever I had previously been playing in the car 
Not an impossible problem, but lots of cases to consider.