Should the court hearing determine human rights have been breached in the matter of women and existing abortion law it then becomes easier and less contentious to pass amending legislation. In these circumstances the present law could go beyond the raw findings of the Court and come closer in line to existing English legislation.

You cannot have an argument to keep out of N. Irish Politics and also argue for a change in the law to be arbitrarily imposed. The majority party is against a change, therefore there would be an obvious reluctance to challenge them. Realpolitik in action. Not desirable but in the morass of N. Ireland politics is there any viable alternative, without wholesale mayhem?
Most people would agree the present Abortion law needs to be changed.
The best possible way to change the law is after the upcoming court case, assuming the verdict is positive. The UK has always been quick to legislate when found in breach of human rights.