If you have not been there, go there. NOW
This applies to be previous post on my novel idea as this is the best horror idea ever. I will write my novel and this because they both are so damn epic.
"The story takes place 200 years after the original, in 2097, when the earth has been overrun by zombies. Dracula rises from the grave, knowing he has to restore the race of vampires to the planet. However, he finds his bite has a strange effect on the zombies: They are immediately imbued with the ancient vampire martial art of Chainkata (a.k.a. fighting with chainsaws).
As Dracula's growing vampire zombie chainsaw army leaves a trail of hacked limbs across the land, he soon clashes with a new threat: A horde of human refugees who have survived the 70-year zombie war thanks to nothing more than their wits and gigantic mechanized battle suits."