Rewriting the Ending

In today's activity I have chosen to rewrite the ending of my story. The ending of the story has Lida from making bombs for Hitler receiving a letter from her long lost little sister Larissa asking whether she would like her step parents to adopt her and come live with her through my perspective this is a great ending but an even better ending for me would be.......

25 years later Lida and Luke get married they're child is know 3 years old and they come to a park, and it explains what they have been through. One day " Lida is that you " Her eyes fill up with tears,
" Larrisa....". After that another series of the book comes out