system
Given the following post, respond as if you're commenting on Reddit:
human
[Avatar The Last Airbender] what would've happened to the avatar reincarnation cycle if there were no more airbenders?

What would've happened to the reincarnation cycle if the fire nation had successfully killed Aang, thereby exterminating all airbenders? 

Would it simply skip air after a firebender avatar? Would that be the last of the avatars?
gpt
There had to have been at least some level of intermarriage between the bending tribes. It doesn't usually come up because even a child of two benders would only inherit one or the other at most.

In this case it would. An airbender avatar child would be born to someone with airbender ancestry, even if they were a nonbender or lived in a different environment.