Just to actually bring some context back to this thread and the discussion about LAX - LHR - Air NZ stopped selling tickets on the LAX - LHR route yesterday NZ time after the announcement was made that this sector was being scrapped.
(And this thread is specifically about that sector, not other flights or routes nor flights from AKL - LHR which are being discussed in numerous other threads, so I see no reason to bring discussion around that into yet another thread)