As much as I would like to see such an awesome event hit an Aussie theme park, im not to sure of its relevance. Halloween isn't widely celebrated overe here, and I would have thought that would be the basis of their popularity in the States.
Perhaps theres some big event on our calendar that we could theme a park too? Australia Day?I think id rather see some Christmas type event, i.e. Grinchmas
Definetly give it a try tho, If an aussie park could pull off something that great, then go for it! MW is fantastic with the themeing, which should lead to some great houses! A Cornfield effort would be great to see, perhaps Evil Superman/Batman. Spooky Chinatown before jumping on Leathal Weapon. Id like to see some rides changed for the event? Scooby Doo runnig completely backwards? Some different effects in the indoors part of Wild West? Haunted Street Parade? Have the whole park being taken over by Villians? Have the fountain area taken over by the Joker, leading into a Haunted House, perhaps the faux Wayne Manor?