Zack Snyder's 300: Born of an Empire would likely be an epic continuation or prequel to Snyder's iconic film 300, which was a stylized retelling of the Battle of Thermopylae. Known for its visually striking aesthetic, intense action sequences, and dramatic storytelling, this new installment could delve deeper into the origins and legacy of the Spartan warriors and the broader conflicts in the ancient world.

The title Born of an Empire suggests a focus on the rise of the Persian Empire, possibly exploring the early life and ascension of King Xerxes, the primary antagonist in 300. The film could depict how Xerxes transformed from a mere mortal king into the god-like figure seen in the first film, exploring his motivations, ambitions, and the influences that shaped his desire to conquer Greece.

Alternatively, the film could also explore the origins of Sparta itself, focusing on the legendary figures who founded the militaristic city-state and its fierce warrior culture. This would provide a rich backdrop to the events leading up to the Battle of Thermopylae, showing how the Spartans became the formidable force depicted in 300.

Visually, Born of an Empire would likely retain Snyder's signature style, characterized by slow-motion combat, highly stylized visuals, and a dark, mythic tone. The film would feature intense, choreographed battles, larger-than-life characters, and a narrative that blends historical events with mythological elements.

Thematically, the movie could explore the concepts of power, ambition, and the human desire for immortality—whether through conquest, legacy, or legend. The story might also delve into the cultural and ideological clashes between the East and West, as represented by Persia and Greece, adding depth to the epic battles and political intrigue.

Overall, Zack Snyder's 300: Born of an Empire would aim to expand the universe established in the original 300, providing fans with a deeper understanding of the characters and events that shaped this brutal and fascinating period in history.