With the projected cost being £3.5B, there is no profit to be made ever, if the tickets are priced at £57. Security and other safety issues won't allow more than a certain number of people to be in the park at any given time. That is probably why the partners pulled out. It may not be a scam, but it could be a "mistake of the heart". The government could designate this zone as "entertainment park " and invite smaller companies to set up individual rides and attractions so it becomes feasible.The park itself is a great idea, but needs financial engineering if it has to be successful.