I can't help but think that Rebirth would be much better if they used Pre-flashpoint as the foundation with the best elements of the new 52 mixed in; rather than the reverse. There's so many characters that feel like echoes of their former selves. Wally West, Donna Troy, Helena Bertinelli, Cassandra Cain, Tim Drake and Stephanie Brown to name a few. The Titans history is in disarray and no one knows for sure what's canon and what's not. Rebirth is better than what came before, but I can't help but feel something is missing.