The Rex numbers shouldn’t really increase, actually I would expect them to go backwards later this year. You have Jetstar 5x78s, 9xA320 from Asia, debatable if they will even return. Virgin sending in another 10. QF increased widebody ops.
The biggest challenge for Rex has yet to come. In the next 12-24 months the NEO arrives at Jetstar. The MAX starts rolling in at Virgin.
Rex are about to get squeezed and it will only yet harder next year. Rex might have ten jets but the others will add that number alone in the space a of few months very soon. Lack of scale will kill them.