What happens when the Gang spents extended time in the Fire Nation next season, and interact with the citizens, will their perception change of the citizens of the Fire Nation?
What is their perception now? And how will it change?
I saw "Zuko Alone" again yesterday, and notice it completely focuses on the Fire Nation characters, and humanised them. Throughout the series, they have humanised the Fire Nation characters, starting with Zuko and Iroh, and extended from there. Than I thought back to the earlier episodes, Sokka and Katara's feelings about the Fire Nation, they said the Fire Nation was ruthless and heartless. We have learned they are not all like that.
It is starting to change, now that Iroh has helped them again. And Toph has bonded with him.
My point is, when they get into the Fire Nation, I think they might expect everyone to be blood thirsty people, who want to destroy the world. And they might find out, that is not the case.
One of the things I love about the show. They didn't just make the Fire Nation a bunch of misc. evil people. And they get the same character development as people from the other nations.