I took my mother to NYC for her eightieth birthday in 2018 on AMEX 2-4-1/Avios in First, B747 both ways of course. We bagged 2A and 2K outbound and 1K and 2K return (of course I swapped seats so she still boasts to this day she sat in the best seat on the BA747). Finishing the long weekend with a meal in the T7 CCR was fantastic, a real privilege.
Looking at the photos posted earlier by Genius1 I am confident in stating we will never see such elegance and luxury from British Airways again.