I visited Yukan and Jilalan week before last when QR managed to shut down and clear out Jilalan yard for four days.
While this cut down on photos of moving trains fairly dramatically, photos of static locomotives became easier.
Yukan had received 3840, 3841 and 7123 and these hadn't been moved to Jilalan because of the shutdown.
This means that QR have only four locos from Siemens to come and PN only one more in the current order for 24 (although they will need more...)
By chance I also saw an empty shell numbered 3759 on a road trailer stopped south of Mackay, so only four more of those to go to the current total of 63.
I would expect that more might be rebuilt (or more new locos obtained) but that might depend on how much traffic PN gain. QR need more electrics on the Blackwater trains...