Someone who predicts the future WordNet 3.0 & Open English WordNet

Futurists are people whose specialty or interest is futurology or the attempt to systematically explore predictions and possibilities about the future and how they can emerge from the present, whether that of human society in particular or of life on Earth in general. Wikipedia

Person who attempts to systematically explore predictions and possibilities about the future and how they can emerge from the present Wikidata

One whose manners or ideas are fantastic and fanciful. Wiktionary

One with fantastic or fanciful ideas. Wiktionary (translation)

One who studies and predicts possible futures. Wiktionary