Superman - Dies destroying a powerful dark magical weapon
Lois - Dies saving Superman in her old age
Jimmy - An elderly curator for the Superman museum
Perry - Dies from a heart attack
Supergirl - Retires on Kandor and becomes an ambassador for them
Superboy - Dies battling A powerful alien along with several Titans
Steel - He who lives by the hammer dies by the hammer A new crime lord attacks Steel and kills him with his own hammer
Lana Lang - Retires after being the mayor of Smallville
Pete Ross - Killed used as a suit by Brainiac
Lex Luthor - Sent to a prison in space for killing some alien
Brainiac - Killed by the gathering of a Green Lantern, Red Lantern, and a member of the Sinestro Corps
Bizarro - Killed by one of Superman's enemies thinking it was Superman.
Zod - Killed by Bizarro