Really dose it matter if the outcome is 12 months or 24 months if there was no mechanical defect which caused this accident which could lead to other accidents within the same type of aircraft.
There has been no ADs etc from this accident issued.
With this I mind it leaves over developments which cause this accident which can be assumed are off the one off type.
I would rather see a complaint result than if but maybe. But realistically I don’t think we will really ever know what the real cause was.
But rest assured ATSB will find a cause for the accident even if it’s no true and correct