The Academy of Motion Picture Arts and Sciences still uses the word "actress," while SAG has adopted the more forward-looking, if clunky, "female actor." Beyond the statuary and nomenclature, though, there's still an element of separate-but-equal. The Gotham Independent Film Awards take a more progressive stance, refusing to categorize actors according to gender and instead bestowing awards for best breakthrough actor and best ensemble cast.
If it's easier to let go of the word "actress" than the concept, that may be because performers are unique among artists -- their bodies and voices are their raw material. "Sculptress" is a silly and offensive term because it draws an irrelevant distinction; men and women who sculpt use the same clay and stone and metal. Men and women who act bring contrasting physicality to the proceedings. La difference is alive and well, for now and the foreseeable future. (Even the growing transgender phenomenon reinforces more than blurs the distinction.)
The phrase "female actor" may suggest a seriousness and muscularity that "actress" does not, but it also has a certain diluting effect. It wouldn't be a terrible thing to embrace the designation "actress" for all the power, creativity and individuality it can convey. "Goddess" -- a word not likely to be retired any time soon -- expresses an essence that "female god" never could.