>>94273677Not him, but a general idea would be that they add their own views and prejudices on what he is.
Katara believes he's agressive and dominant. Zuka (needs a better name) becomes a forceful dominatrix and nearly rapes Sokka.
Aang reminds him about his talk about honor and fire nation pride. She turns into what Zuko believes a fire nation woman should be. Mai-like maybe? More traditionally japanese Yamao Nadeshiko?
Sokka realizing his earlier pranks are messed up, tries to bring back the warrior and prince in him. She becomes Zuka Warrior Princess, and everybody is confused where she got that chakram.
Eventually Toph get's tired of laughing, or Suki comes from whatever limbo she was during the start of the story, and just tells her to be the old Zuko they all know and love. Zukos personality snaps back to normal, though now being pretty okay with being a woman. Whether she goes back to being a guy would depend on the writer.
Secret ending:
The 'we all know and LOVE' part gives him/her a drive to make the rest of them into a his/her harem. 
