Though it's not technically new, I recently found a great manga. Blood Soul is absolutely EPIC. Lots of action yet it still has a good story. Plus, both vampires and werewolves (even if you don't get to see the werewolf transform much). If you like Noblesse or Necromancer then you will love this!
Basically, the story is about a vampire who is trying to get his fangs (fangs = power) back from some crazy priest who killed all of his friends and family. Only with no fangs he is stuck in a child-like form and can only use his vampire power (control over blood) for a short amount of time.
