Studios and labels announce on patterns: trailers drop a fixed number of weeks before release, tour dates go up on Tuesday mornings, and album announcements cluster around specific quarters. Markets asking whether something is announced by a date can be priced from those historical cadences plus observable pre-announcement traces like registered domains, trademark filings and venue holds. You model the cadence and trade the date markets.
Markets on Polymarket where announcement-timing pattern model is the natural play: