I was thinking a spooky restraunt that serves primarily vampire foods, and maybe a few normal foods for toddlers and such. A side area that is kind of like a play pen area to put all the restless youngins who have decided food is not in their future.
Take another lot and build a full on graveyard with a masoleum in the middle, not too big, not too small. Under the mausoleum there will be an entrance to a nightclub/bar, then maybe below that some coffins, children toy items for those kids that can't be left alone.
As for the other lots, maybe some large gothic mansions, and one that is completely not gothic. I haven't completely decided on it, though I want to get to designing soon... Unfortunately, I am too excited to get on the game and start... Already tried. XD