There appears to be some gross misunderstanding of the Australian legal system in these posts. The court does not reserve a decision to gauge public opinion. Secondly, this decision is being made by the full bench of the Federal Court. It is not FWA.
The decision is reserved because there are several difficult administrative, constitutional and statutory interpretation law issues to resolve. These issues are accurately described by Tuner 2. The three judges need to consider the aural and written submissions by the various parties and determine how to apply the law. The decisions will then need to be drafted and published. This takes some time.
While the various judges may approach the problem from their own idealogical perspective when putting their mind to the issues, in the end they are assessing the facts, interpreting the law, and then applying the law to that fact situation. Any suggestion that they would be under pressure from the government or the public is misguided.