The reader is left with the impression that Creon has learned his lesson at the end of the play and will be a good king after all.

Immediately, a second Messenger emerges to inform Creon that Eurydice has killed herself. As she committed suicide, she cursed her husband. Weeping and bewailing his fate, Creon asks the servants to lead him away. No longer stubborn or proud, he knows that he has brought about the deaths of his wife and son. He stood by his conception of justice, but in doing so he defied the gods' laws and lost his son and wife. The Chorus comes forward to warn that pride brings retribution, and to declare that the greatest form of wisdom is an abdication of pride. So yes, I'd say Creon has learned a lesson and might change his ways; He ha however paid a terrible price for this.