All this year I heard two things. (1) The 2004 silver quarter proof set was an experiment and will not be done again and (2) 2004 was the last year for the Sacagawea dollar. According to the Mints Online schedule, neither of these rumors was true. http://catalog.usmint.gov/wcs/wcs_command_nc/0,,cginame_g=!prodsched%60d2w!report,00.html
