From another forum, the delivery date for ZNN is scheduled for 28/6/23, which I presume is ex PAE, arriving into MEL? on the morning of 30/6/23.
Conflicting info ... Under a pic of fully painted ZNN, Matt Cawby on 21 June in Paine Field Blog stated "ZB282 Qantas 787-9 VH-ZNN and ZE235 Turkish Airlines 787-9 TC-LLR were moved out of the 40-21 last night, the horizontal stabilizer fitting NOE rework is complete. VH-ZNN is scheduled for a delivery flight on June 24."