Question

How the ending of the story would be extended to some extent and ended in a different way

Answer 1

you can say that if the main charcter is dying say he is managing to live and then another person comes and something else happens that the main character is still living and also wins the thing

Answer 2

There are many ways in which you can end or extend the story.

It can be the aspect of a happy ending or sad ending.

If you believe that there are many ways in which you can describe the ways to form the ending.

It will actually go as per the story.