Not only with ford, but all manufacturers, different model names for individual markets will become less and less. From what I hear there is a fair to overwhelming chance that the "Holden" brand will disappear being phased out running up to or around 2020 unless there is unexpected growth with the new gen Cruze and co circa 2016/17. Expect it to start with a Chevy silverado & Camaro with more chevy models gradually replacing the Holden ones as the new generations come on sale.
As for Ford - Expect the Mondeo to take a bigger role if you want a large sedan. Territory will be replace by 2 SUV type vehicles a-la Captiva/Colorado 7 in the Holden range.