Dunno. Apple makes exceptions for big companies and might do so for something as big as Minecraft. Also, SDL3 supports far more platforms https://wiki.libsdl.org/SDL3/README-platforms Now they can release a Java edition even for PlayStation and Xbox. At least porting to SDL3 opens the door to consoles and mobiles if they want to do so.
If both sides are willing to do that, why didn't they do that the first time instead of creating Minecraft PE?