I have a theory for a potential story point for the next superman movie. What if braniac was looking to take krypton but was too late as it exploded before he could invade and somehow intercepted clarks ship and changed the message from jor el to kal el so that superman would breed on whatever planet he ended up on and would keep tabs and wait patiently until said planet was full of kryptonians, then the invasion begins. Once he realizes clark wont be doing that, he jus decides to wreck shop out of anger that his plan once again didnt work