Then Kiri... she's the closest thing to a Jedi Avatar has. She's actually honestly the Jesus figure of the movie. Her birth was a mystery and she has an extremely close relationship with Eywa due to Grace and the ceremony they performed after her death i'm assuming. I think she'll be a very interesting character going forward, especially if they are allowed to do 4 & 5.
4 feels like a lock, especially with it partially filmed. Honestly wouldn't mind if it stopped at 4 with how this film sets up what feels to be a proper trilogy structure for the sake of the series going forward. Ditto on Kiri having a lot more of the "Jesus" angle than I think I'd even give Jake Sully credit for.