I'm as big a fan of Zombie's movies as you'll find, but H2 is a bad movie unless specifically viewed as a commentary on PTSD. Zombie did not want to make the movie and it shows.
Zombie had stated it that really the Weinstein's were basically involved throughout both films, when he did the first film, he said he wasn't going to do it but the Weinsteins decided to try and basically sucker him into doing the sequel and if he didn't, they'd put someone else in the director's chair and that's where Zombie got hesitant and yeah he pretty much didn't want to do the movie, I do have to say that I'd admire his courage in trying to make his own movie you know, I'm in the middle with both films.
I'd say my favorite zombie film will always be Devil's Rejects because that movie he had put a lot of heart and soul into it than he had done with House, nothing saying House was a bad film but Zombie even admits that if he could, he would made some changes to that film and made it better than the product was but looking back at it now, the movie very super violent and crazy and very black comedy at times, it's a perfect film but Devil's Rejects really showed what Zombie wanted to try make as a "conclusion" to the family until people wanted Three From Hell which I'm sure will be another good film and better down the line, very looking forward to it.
As for the Zombie's scarezone, I think it would be awesome, I mean it will have a lot of references to his film and very colorful, gritty, dirty monstrous characters from his films are perfect for the zone, I've said it before on this thread but a lot of key characters and memorable ones at that are definitely gonna be cool to see in this zone, of course it might be a photo-op nightmare at times but regardless of the matter, it would be awesome to see a Rob Zombie scareactor on stilts or something and sorta being like a barker meanwhile being chased by the Rejects, the clowns from 31 and so forth.