Final answer:
The statement is likely an example of foreshadowing, a literary device where hints about future events in the story are given, building anticipation for what is to come.
Step-by-step explanation:
The statement "Next time I rescue you, okay?" could be an instance of foreshadowing depending on its context in the narrative. Foreshadowing refers to when an author provides hints or clues about what will happen later in the story. If the statement was made in a context where a character is likely to be in a situation that requires rescuing again, it would suggest upcoming events and thus qualify as foreshadowing. Without additional context, it is difficult to determine if the statement is also an example of irony, sarcasm, or hyperbole. However, based on the provided information, it seems most closely aligned with foreshadowing, where a future plot point is subtly hinted at. This literary device often serves to build anticipation and prepare the audience for what is to come, much like the warning given by Tiriesias in Antigone.