It is a word in English, but it is used in Spanish in the cinematic field as a narrative resource where the story briefly shows a future scene that completes or clarifies the story told in the present. In Spanish it is called prolepsis, but it is used more for literature. See flashback , English/flashforward , analepsis .
FLASHFORWARD anglilicism, FLASH move with great agility; glare, luminous burst and FORWARD, forward; in literature: it is called the transfer of narrative abruptly to the future in film, literature, comics and television.