Katt Girl, Robin, & The Harley-Kidd

This story first begins 12 years in the past after future Bruce Wayne sends future Selina Kyle back through time to stop Ra's al Ghul and Darkseid from destroying the world. After Selina goes back through time, a ripple-effect causes the past timeline to shift only months before Bruce Wayne becomes Batman. New super-heroes/super-villains will emerge, while some origins may change.