Board Thread:Speculation, Theories, and Rumors/@comment-25256883-20160220123602/@comment-477304-20160221020230

Superjake1 wrote: Amy, Blaze, Jet, Wave, Swallow, Vector, Mighty, Orbot, Cubot, Rouge, Shadow, E-123 Omega, Antoine, Bunnie, Big, Cream, Tikal, Charmy Bee, Saffron Bee, Espio, Silver, Rotor, Sally Sega do not own Saffron Bee anymore. Unless Sega and Sony make a deal with Penders (and, quite frankly, I think there's more of a chance of hell freezing over), Saffron Bee will not be in the move. Any comic characters in general are unlikely to appear.

Ethan7896 wrote: Mario, Sonic, Luigi, Tails, Knuckles, Yoshi, Silver, Shadow, Princess Peach and Elise, Amy, The Wisps, Bowser, almost everyone in the Mario and Sonic Universe Sonic and Mario do not have a shared universe, they just crossover in one video game sub-series. Furthermore, there hasn't been a single hint that this will be a crossover movie and no indication that Nintendo will be involved.

Also, generally speaking, it's unlikely that the movie will have such a large cast of characters; the movie needs to be self-contained, too many characters could lead to a lack of focus or over saturation.