Last week came the reveal of Katie Cassidy's Laurel Lance dressed in her Black Canary outfit. Fans of the show have long been wondering when we will see the full transformation and Laurel's onscreen debut in the outfit. Turns out the first couple of episodes after the show's winter break will be about just that. Executive producer Andrew Kreisberg spoke with THR recently about Laurel's involvement in the upcoming "Arrow" & "The Flash" crossover event.