Anyone could lodge "an expression of interest" with the Administrator to acquire the company (and thus the AOC) under a scheme of arrangement. I have no idea why and would be very surprised if an existing AOC holder would be interested in going through the process, gaining creditors agreement etc. I think the creditors would not be interested unless there was a very significant financial benefit in the deal.
Occasionally, the original share holders/Directors may offer to buy back the company in Administration (and thus AOC) through a negotiated dividend (cents in the dollar) on the debts.
Ansett Airlines (company and AOC) was for sale for at least a year, perhaps longer, before being relinquished back to CASA for cancellation.
I hate to rain on your parade, but I would be very surprised if OzJet (and it's AOC) were sold.