I feel like this was a mid-season reboot, the last few episodes of Korra were terrible. I mean who watches Avatar to see couples and family drama for god sakes? I got this feeling that the show was loosing audience so the producers decided to give it a big shake. And my god, they DID IT!
Seriously, Wan's journey was so profound that one could even believe it had been based on a real legend. It's the kinda story you would tell your kids before bed. The fact that he had no birthright to anything was brilliant. That was one off the deepest characters I've even seen in the history of Avatar.