They are expected to take up the entire 39th floor of the five-star hotel.
As VIP guests Tom and Katie - along with three-year-old daughter Suri - will have panoramic views of the city, a butler and a nanny service on call 24 hours a day.
The suite - which features four huge bedrooms, a private lift, marble-lined bathrooms and state-of-the-art kitchens - is currently going through a refurbishment and is expected to be completed in time for the couples arrival.
It is not known whether Tom and Katie will pay for the suite or if it is a gift from the casino owner, who is the son of media magnate Kerry Packer.
Katie recently revealed she cant wait to move to Australia and start working on the new movie.
She said: Im really looking forward to it. The movie is really character-driven. Its really her journey becoming a mother. In the midst of that, there are unexpected scares. - ES