Applicants who have previously been approved state sponsorship for a 475 visa subclass and have been granted the visa or have lodged their visa application with the Department of Immigration and Citizenship (DIAC) are unable to apply for state sponsorship again for a 190 or 489 visa subclass.
Any 475 visa holders / visa applicants wishing to pursue permanency in the future will need to refer to the DIAC website for information on and criteria for the 887 visa subclass - http://www.immi.gov.au/skilled/general-skilled-migration/887/