Careful you don't tell Uncle she's here, or he'll never let you hear the end of it.

[Sorry, Zuko, even your older self likes poking a little fun at your expense. His amused smile quickly grows into a more serious expression, though:]

Joking aside... If so many here are showing up from the past, I hope the consequences will not be too dire. The world has only just begun to reestablish balance after Harmonic Convergence, but this could threaten to topple that all over again...