Curate, connect, and discover
Each Avatar must learn to master the four elements. It’s traditional to learn the elements in the same order as the avatar cycle, but this isn’t mandatory. There are several examples where an Avatar learned the elements “out of order”. One idea I’d love to see is an Avatar learning in reverse order. (Such as Korra learning: Water, then Air, then Fire, and finally Earth) I like this idea because it might help the Avatar connect better to their past lives. By learning in reverse order, the Avatar could learn about their predecessors along with learning the elements. e.g.
Korra would learn about Aang while learning Airbending.
Roku as she learned Firebending.
And Kyoshi as she learned Earthbending.
(She would still learn waterbending first since it’s her native element, and I see no reason for her to learn about “Kuruk the idiot”.) The past Avatars might even be able to help the current Avatar learn the bending.