Well, now news is in. And it's not good.
In just a few words, the Ministry of Immigration snuffed out any hope. This is part of the letter sent to GM Antic and which he kindly shared with his supporters.
While Section 351 of the Act provides the Minister with the power to substitute a decision of the Migration Review Tribunal with a more favourable decision, it is a discretionary, non-compellable power. This means that the Minister is not obliged to intervene in your case.
The Minister has personally considered your case and has decided that it would not be in the public interest to intervene.