only headcanon that matters i think i know what headcanon means
also it's kind of dull that the earth kingdom went all bad guy this season i'd be so epic if the next series was about a group of people having to defeat the evil earth kingdom avatar and i don't care about the dark avatar that season sucked
Stereotyping fire nation people as bad guys is the main reason why the creators don't tell us.
O PA-LEASE! Its SOOOO true! Especially in the pre-series! The only genuinely good fire nation person ive seen in the story was the boy who helped Appa escape
The Avatar cycle of reincarnation followed the pattern of Air-Water-Earth-Fire. I'd assume the selection is random. But who knows what will happen after Korra dies? The old cycle has ended. Korra has broken off all connection to the past Avatars. I personally don't even believe that the cycle is going to continue. There's no need for a bridge between the spirit and physical worlds if those worlds are not separate. The Avatar cycle did not begin until the spirit world split apart from the physical world. Naturally it would end after the world returned to its initial conditions.