Details about Fortnite Winterfest 2025 have been leaked, including potential crossovers with Harry Potter and the inclusion of new skins such as Hatsune Miku and Sabrina Carpenter. The event may also bring seasonal map changes and gifts. The release date and start time for Fortnite Winterfest 2025 have not been officially confirmed, but leaks and rumors have sparked speculation about the event's content.