Look - it's Catwoman ('00's style) from the "Batman Live World Arena Tour", the stage show produced in London. Looks like a very nice cosplay version of the costume, plus they have a Poison Ivy and Harley. Great shot of her in action above, and below with her Gotham cronies.
I already like that they are keeping the characters close to DC Style guide, unlike Marvel's POS Spider-man Turn off the Dark. I missed all the publicity during Spider-man, I wonder if DC learned from Marvel's mess up.