So just what was Belial's plan there?

[MongoJerry]

This is the main reason I worry about Ender's Game being made into a film. Take out Ender's killing of Stilson and Bonzo, and a major part of Ender's character is lost. He's a sweet empathetic kid who is also a killer (the Valentine and Peter duality). Take away the killer part, and he becomes just some kid who thought he was playing a video game and without knowing it saved the world in the process (and committed genocide/xenocide in the process).