Hoping that's the case - still waiting on Qantas to get back to me on it. Jetstar confirmed that they gave the information regarding the flight being business class to Qantas. Maybe the premium is sold out on the dates I've moved to also I was thinkingAll business class passengers have been offered Premium Economy for this, I believe, so I would double-check that someone didn't misunderstand the new flight arrangements.
See Matt's article here: Jetstar Ending All Flights to the USA