Hey, I need some input

[Prophet Tenebrae]

To be honest, you could do zombies probably but you'd have to lose the whole rising from the dead, only feasting on the living etc. thing

But anyway - sounds as if you've got a decent main story idea worked out... I think you should probably keep it relatively simple though - the rest of the ideas sound as if they're just going to detract from what you've got worked out.

You're probably best on just working through the whole knights of the round quest thing, rather than introducing a bunch of extra elements. It's like they say, it's always best to do something simple well.