I have been waiting for something to happen in this series, and no it is not the hole in the top of Power Girl's uniform. To me, Huntress has taken a back seat. She has almost become forgettable. The only memorable moments have been her tapping into Bruce's account. This has really bugged me. I know that she will have an encounter with Bruce over this and all will be forgiven.
Damian should thump on her a bit. I get that Huntress should take it to him, but Damian has put the boots to Jason and Tim. Both of these guys has been trained by Bruce
The New 52 Earth 2 universe has little to no continuity of the original Earth 2. If it did (for sake of this post), Earth 2 Batman was more detective heavy than fighter. I'm sure that E2 Batman had no training from the Assassin's Guild. Therefore, Helena would not be the same style fighter as Damian.
Lastly, I hope this is a turning point for this book. I have been wanting to cancel it for awhile. The stories have been incredibly boring. I keep hoping for more character development.