Here's why:
* No official details have been released: The filmmakers haven't shared any plot details, character lists, or casting information about the upcoming movie.
* Azula's fate is uncertain: The "Avatar: The Last Airbender" series ended with Azula's fate left ambiguous. She was captured, but her ultimate fate wasn't revealed.
* The new movie may have a new storyline: The movie could focus on a different time period or a different set of characters, making Azula's inclusion unlikely.
However, it's important to note that:
* Azula is a popular character: Fans love her complex personality and powerful firebending. It's possible the creators might include her in a cameo or a larger role.
* The movie is set in the same universe: The new movie is set in the "Avatar" universe, so Azula's existence is not impossible.
Ultimately, we'll have to wait for official announcements from the filmmakers to know for sure if Azula will be in the new movie.