To start, to the extent that other discrete categories have been identified and are known—the bill's title is to end known gender discrimination—the approach would be to amend the bill now with what else is on the table. There have been a variety of proposals as to how best to do that, and the CBA won't take a position on which that is.
There's further adding in the different criteria or, as Dr. Palmater has proposed, an amendment to provide paragraph 6(1)(a) status going back before 1985. Certainly to the extent that Parliament knows now that there's an issue, the thing to do is to act now, as Justice Masse encouraged at the end of her reasons, not to limit it only to the facts of additional plaintiffs.