The shared name and superhero future are due to the fact that ‘Dinah Laurel Lance’ and ‘Dinah Drake’ are both DC’s Black Canary.
Fans were distracted by the possible return of Katie Cassidy’s version of Black Canary – that of Dinah Laurel Lance – and ultimately disappointed when her return was revealed to be a ploy by Black Siren, the villainous version of Laurel from Earth 2.
Eventually, the new history stated, she would marry ‘Larry Lance’ and give birth to a daughter, Dinah Laurel Lance, who would one day grow up to become a new Black Canary.
And while Oliver inched that evil Laurel closer to becoming some kind of hero-in-the-making, she just wasn’t up to the task.