I suspect it would only be revealed should there be a 'trial of the facts' - something that might be pursued by the family of the victim. My gut says that is unlikely to happen - although the family might request and be granted access to the new evidence if they intended to pursue a civil action.I'm very sure that is what we will hear in due course.
The totality of the case serves to illustrate the breadth of the tragedy of Op Banner on everyone involved. Frankly, if the UK government(s), individually over time, and collectively in the 'mother of parliaments', held the same level of courage, integrity, and honour as the young men they send into battle, and the same level of care for their citizens, all of the outstanding issues could be resolved either by opening the files or accepting corporate responsibility. The current situation where justice is denied and blame assigned to individuals is nothing short of hypocrisy that will do little to enhance the UK's attempt to reinvent itself as 'being back in business'.