Are Brian Wood and Olivier Coipel launching an all-female "X-Men" title? Maybe. All we know at this point thanks to Marvel's most recent one word tease, XX is the female chromosome, so this book being lady-centric is probably a safe bet.
Wood is currently working on "X-Men" and "Ultimate X-Men" while Coipel recently did fill-in work on "Uncanny Avengers" after wrapping up "Avengers vs. X-Men."
"XX" hits in April 2013.