Certainly, I believe a NCL Iceland (KEF) could be successful as both a low volume tourist destination,but more so a great one stop USA link (with either stopover or transit) Transit link one stop would divide journey to USA 50/50 and could be very competitive on cost, as well as being more interesting and less tiring than via CDG, AMS, or LHR. Iceland is great for a one or two night stopover en-route, and if only once is off your must do "bucket list" - Must get down to Cafe Reykjavik in town, visit Videy Island (Evening Resaurant by boat), Blue lagoon (Swim & Cocktails)!! and if time allows Ski-mobile to glaciers and local farms!!