First is very important to separate androgynous and androgyne. As one is an expression and one is an identity and the first is not necessarily an expression of the second.
Some Androgynes present unisex, some go for anti-gender, but most seem to mix and match. My 'expression' is a little more of a collage, collecting from lots of of different timezones and notions from different genders as well as those held in common with both. It's more of a scrapbooking, messy hodgepodge than a sleek, cold androgynous or unisex approach.
I personally think there is an endgame for the androgyne, in as much as there is any endgame in life (because life is not a story or narrative, and never will be, we all leave unfinished). That endgame is self acceptance, my aim is not to have an 'expression' because I am being authentic to myself. This is an endgame with no actual end, but as I said before, I don't think life is like that.