Riiiiiiiiiiight………
Anyway, I don't think Tenzin died, but I forgot to add a little joke:
Did Tenzin just… die?
Ya know, it was really unclear.

MY PREDICTION: Because Kai, Kya, Tenzin, and Bumi all got separated from the group, they're gonna have to find them. Kai and Jinora are gonna get their airbending tattoos at the same time, because Kai beat P'Li and Jinora led the group to safety. As for Tenzin, I thought he was dead and tried to tell myself that he…