It is well known that Hyundai is internationally working on a new range of SUVs to replace the existing fleet.  The ix35 has been seen as the replacement for the Tucson and Hyundai is also working on an ix20 which will be a baby SUV.  The Santa Fe replacement is being called the ix45 though one does not know if that is the definitive nomenclature.  Hyundai has been using names in some markets and the i and ix monikers in others.

Pictures Courtesy: Indian Autos