Can We Save Them?

Hope Mikaelson has lost her parents and uncle Elijah and together with her cousins and friends tries to go to the past to save them, except that they were send more backwards than they originally thought.
Now Hope, her cousins and her friends are stuck in the past, where none of them has been conceived.
Will they change the past so much that their parents will not get together, and they will not even be born? Or will they help their parents with their present enemies while getting them together? Will they be able to return to their time and see Hope's parents and Elijah alive?