BNE/MEL - HKG frequency reductions: use of A333s/B789s

[Melburnian1]

With the forthcoming QFi frequency reductions on the MEL and BNE to HKG routes, will this mean additional domestic flights operated on some days by otherwise underutilised A333s (Brisbane, although some days QF97/98 can be an A332) and MEL (B789s) or does it just mean extra maintenance time?

Will there be some more (say) MEL - PER flights operated by A333s?

Many travellers don't enjoy B738s that sometimes QFd or VAd provide on trips to PER: single aisle, and hard to access the loos when staff are distributing food/drinks.