The new card will be automatically replaced by the bank one month before your credit card expires, and then mailed to you, or you can pick it up at the business outlet yourself. If you don't cancel your credit card, you don't need to pay off all your debts. Moreover, the credit card is valid for 5 years, and you should call to apply for cancellation one month before the expiration. If you don't apply for cancellation, the bank will take your default attitude as continuing to use this credit card and will automatically replace it for you.