Vietnam Airlines has released photos of its soon to be delivered Airbus A350 XWB on the same day in which the airline also released photos and a seat map of their Boeing 787-9 Dreamliner, photos here (opens in new window): Vietnam Airlines Boeing 787-9 Dreamliner Cabin and Photos
Vietnam Airlines Airbus A350 Business Class
Business will have eight rows of four seats totaling 32 seats in total laid out in a 1-2-1 seating config.
Vietnam Airlines Airbus A350 Economy Class
Economy Class is laid out in a 3-3-3 seating configuration, it is not known yet how many seats in total.