wongtop: You could perhaps get a 6 month registration now, and then go annual next year when the price is lower.
I'm pretty sure the new rates are based on the financial year (not the calendar) so come in from 1 July; I recall this as I researched it as my car's registration was coming due in early July, and I remember paying for 12 months to get me through until the reduced rates would be available.
So, if I'm correct, at this stage it's still 11 months away...