Assuming this isn’t a cynical comment
the judgment(s) have already been written by the justices. The High Court won’t announce a judgment will be handed down until all justices have completed their work. Each justice can write their own judgment, or two or more justices can agree to write a joint concurring or dissenting judgement, or the court might write a unanimous judgment.
Each judge will find in favour of either the plaintiff or the defendant, and whichever side gets the majority in their favour wins the case. It can go from 7-0 to 0-7 or anything inbetween.
HC judgments aren’t things that are just dumped online, uncontrolled, with no explanation from the court itself. This case has potentially profound Constitutional consequences for taxation law in this country.
Sorry for the dry and overly serious response…