Well, the reason I ask is because I've just discovered this
! I'd not even heard rumours, but it appears that Blood+ is indeed a worthy successor to the original.
It may not look as flashy (they've ditched the cool blend of CG that gave the movie its unique, almost watercolour-esque look), but the animation is still sharp. Having managed to catch the first two episodes so far it's panning out quite nicely, and although they've abandoned the 'feel' of the visuals, the violence most definitely remains!
Anyway, give it a go. I'm enjoying it, and it couldn't have come sooner, either. I was looking for a new series to follow! The Batman and Legion of Superheroes are both finishing in the next few weeks... :(