It is announced that Man of Steel 2 is going to be released. But we don't know when will it be released. I have my villain idea for that film. Actually, I want Brainiac to be the main villain while Metallo will be the secondary villain. So I think Brainiac and Metallo can work together to fight Superman. While Brainiac is attacking him, maybe Metallo can help Brainiac by weakening Superman with his Kryptonite heart. So later, Superman can find a way to beat both of them.