Characters formally shown in the trailer should be considered confirmed. Leaked key art — which also depicted Sora (Kingdom Hearts), Geralt (The Witcher), Lara Croft (Tomb Raider), and Jade (Mortal Kombat) — has not been officially announced by Epic and should be treated as unconfirmed until further notice.
The season introduces Match Hacks: at the start of a match, a cartridge is installed that applies a specific effect to the entire lobby. Three cartridge types were shown in the trailer.
A Green Hill Zone-themed area appears on the map, where players can collect Rings and apparently use a Spin Dash Mythic ability. Exact in-game mechanics await official patch notes.
Eight new collectible Sprites arrive at launch, including Sonic, Tails, Klombo, Killswitch, Jazz Jackrabbit, and Bush Ranger.
The official trailer confirms the season name, launch date, crossover direction, new mechanics, and the characters shown on-screen. Leaked key art and indirect visual hints are not equivalent to an Epic announcement. For the most accurate and up-to-date information, always refer to official Fortnite channels.