In terms of a playbase or play bar, you might have to use a chromecast or appleplay to stream to a tv connected to one.
In terms of a play 1,3,5 - unless there's a cast function in the sonos app, might run into trouble playing it through wifi.
Thanks all. This is what I figured. It will be annoying to drag the play5 to a room with a playbar and sub, but...so be it.