if they do a man of steel trilogy they should do the death of superman comic where doomsday kills superman, however with a different story  as well like superman can die meanwhile doomsday is killing everyone on earth then superman can return. Firstly they should do like a legend of doomsday, doomsdays origins and a aftermath of the previous man of steel. Then superman should destroy a few missiles that lex luthor still has after, doomsday can be destroying metropolis then doomsday and superman can have a fight in which superman wins. While hes dead he can see his dad who tells him to come back to life and he does then he kills doomsday but i want batman to be in the man of steel movies but not for long because its not superman and batman its just the man of steel and they don't have to add sidekicks.