From Scott's twitter.
Just saw the cape on Wonder Girl on the cover to TT11! Now I have to make the story even MORE AWESOME! Breathtaking!
And Brett's blog
The cape has to do with her armor. She's on the cover to TT 11 so in a few weeks you'll see it! Bunker is also getting a new outfit and I'm doing Tims a wee bit differently, but it's still basically the same.