For Brightburn, which fits more snugly in the horror genre than the superhero realm, it’s unclear now Brandon Breyer will be neutralized, if at all.
As far as we know, there isn’t anyone else in this world anywhere near as powerful as him, and there’s no sign yet that he has a kryptonite-like weakness.
If this were a DC movie and Superman or someone like him went rogue, it would be easy enough to throw either another superpowered individual or some kind of advanced technology in this threat’s way.
For what it’s worth, Brandon tells his mother at the end of the trailer that he wants to “do good,” but with all the destruction he’s caused and no sign of that darkness inside of him diminishing, the chances of him turning back to the light don’t seem likely.