As you know, in the Criminal Code there is a definition of “victim”, but it's for the purpose of victim impact statements, and it's quite an expansive definition. It indicates that it's not just the primary victim—that is, the dead, ill, or otherwise incapacitated victim; it can be the representative of the victim, a dependant, or a family member. Although that's only for the victim impact statements, the courts have often given a fairly liberal interpretation to “victim” in other contexts. To an extent that's been an evolution in the law: you're recognized as a primary victim if one of your loved ones has been murdered or can't be there on their own.
We would expect that the provision now in Bill C-2 that provides that the victims' evidence be deemed to be adduced would be interpreted in the same liberal way, but there isn't a provision in the Criminal Code that makes that crystal clear; it's only with respect to victim impact statements.