There are hoards of absolutely silly pronouns meant to replace the usual gender-specific run. Personally, I think it's taking the notion of politically correct to an unspeakable extreme, and it's verging on offensive, since I quite happily refer to myself with female pronouns and don't want to be called "sie" (instead of he/she) or "hir" (instead of him/her) as I saw in one otherwise excellent article. Of course, even "sie" is in disfavor, and "zie" is preferred. Here's a good blog on the topic:
https://genderneutralpronoun.wordpress.com/
CJ Cherryh has a race, the stsho, who are hermaphrodites and have three sexes. There are varying pronouns for the male sort of role, the female sort of role, the third gender who is most often the publicly seen gender, and those who are past sexual (neutral) and those who are between stages, since stsho can switch genders under stress or to complete a mating triad. (http://www.shinyfiction.com/cherryh-fan/chanur/stsho/stsho-gloss.html ) She covers the differences in conversation, or casually in a character's reflections, and it feels natural that way.