According to AnimeNation:
Production IG has opened its official homepage for the BLOOD Night anime TV series based on the 2001 anime film Blood: The Last Vampire. The official site states that details on the series will be revealed April 10th. The series will premier on May 9th.
While I don't really like vampire stories in general, and didn't really care for the Blood: The Last Vampire movie in particular; I'll be interested to see how this TV series turns out. Hopefully it will give some background to the story that was never covered in the movie. And the fact that it is going to be produced by Production I.G. doesn't hurt either.