This gives me an idea. What if Catwoman's arc is basically Harvey Dent's in reverse? She starts off as a convict (hence the orange jumpsuit), and gets broken out with the other prisoners by Bane. She adopts her cat burglar get-up (hence the domino mask and leather catsuit), to engage in petty crime.
But when the crud really hits the fan, and Bane and Talia take Batman out, maybe even stabbing him like has been rumored, Selina gets on the Batpod to try and stop them and stop some of the chaos. She could then be responsible for taking Batman to safety and nursing him back to health. Maybe then Batman helps equip her with some technology to become a vigilante in her own right, furthering her transformation into Catwoman.