While David Corenswet's Clark Kent will make his formal debut next year in James Gunn's Superman movie, the character will actually appear beforehand. A new Creature Commandos trailer revealed that Corenswet's Superman and other DCU heroes will show up in the animated series. I think it is okay for Superman to first appear there, as the scene seems to be a vision from a possible future, thus not impacting his Superman movie but rather serving as a tease to get people excited about it.
