Qantas jumping on it is only the beginning
'Project Sunrise' was trialed couple years back with their later 787 deliveries. Since then, they are going A350 with additional tanks even further. They seem to think ULH is in everyones future. ~20hr flights for all.
New York isn't a new destination for Qantas. In years gone by, the airline has flown to the destination with a stop in Los Angeles, though it didn't have the rights to sell tickets solely for the domestic leg. Now, Los Angeles is being replaced by Auckland.