Yeah, like they didn't tell us "Superman is dead! For real!" "There's a new Bat-Man! Forever!" "The Forever People are adults!" "Darkseid is dead!" "A new, darker, Flash has arrived ready for the new century!" "An updated Superman right in time for the new century!" And again, you use the same examples. They are the exception. If you look hard you'll be able to find about 20 or so permanent changes in the DCU... and I bet most of those will be undone some day.
