A comment from the flight deck is at least reassuring for nervous pax - even if it is minimum info. I was on VS011 28/10 (LHR-BOS, A346); folks were getting edgy anyway after sh*tty weather, extended flight time (strong headwind), and then a long holding pattern (25mins or so). And then a go-round.
However captain made PA (within about 2mins of spooling up) explaining calmly that "runway not cleared in time and we are vectoring back into pattern, down shortly". Simple and concise and I think it was the actual calm announcement (rather than the content) that reassured the folks sat next to me. (I was more concerned about fuel!)
GDI