I was expecting a "next year" coda myself, something to indicate that the noirish fight against the forces of the night would continue.
I thought the Ring Wraithesque vampire language was a suitably eerie touch. According to the credits all the vampires had names, but there was nothing in the dialogue to indicate who was who amongst them.
Also thought that the vampires were stupidly, needlessly messy messy eaters.
The reference to Dracula in the beginning was a nice touch.