I'm probably way late to the party but if you play as Nate then Nora is an Easter egg alluding to Mister Freeze's wife Nora Fries from DC comics. Both named Nora,
Breaking News: Cassandra Jean Amell Joins the Arrowverse As Nora Fries | DC
Detective Comics #1014 review | Batman News
Ms Freeze [Harley Quinn '19] by MaleVolentSamSon on Newgrounds
Nora Fries" Evolution in Cartoons, Movies and Shows. (DC Comics) (Mr Freeze's Wife) - YouTube
Batman and Mr. Freeze SubZero Original Production Cel On Original Back – Choice Fine Art
Dark Love And Tragedy - Mr Freeze - A Nora Fries Retrospective - YouTube
Nora Fries by JamesZorranFan789 on DeviantArt
Nora Fries as Mrs. Freeze (Earth-0) - DC Comics
Why Mr Freeze Is Batman's Most Relatable Villain – The Comic Vault
Nora Fields (Character) - Comic Vine
Nora Fries (Earth-0) - DC Comics
Nora Fries "Lazara"
Did Batman's Villain Mr. Freeze Ever Get A HAPPY Ending?