I'm kind of hoping that they choose to quietly kick that can down the road*.
They'll make a big noise about ending the 'Ute Tax', and hopefully that'll be enough to keep their farmer friends happy.
Work needs to be done around RUC for PHEVs and Hybrids, and it does make sense to roll it all into one project and roll out in 2025.
* I'm hoping, as I've just ordered an EV ;). This of course means, RUCs will come into force for EVs on 1 April 2024 :)