This story is set up with overt foreshadowing. The narrator explains, early on, of how her mother saved her three times. Then she chronicles these events. The first time is that her mother saved herself during a trapeze accident (caused by lightning, foreshadowing the fire later). She lost her trapeze partner and husband and wound up in a hospital where she met her second husband and father to the narrator. The narrator thanks this meeting and the hospital as the second time her mother saved her. The last time is when her mother rescues her from the fire.
So, you could deal with the general prediction that this will be a story about a daughter's gratitude toward her mother. But one more particular prediction comes from the first saving event. During the trapeze accident, her mother has a chance to save Harry, her husband, or fall with him; but she chooses to turn and save herself, thus saving her then unborn child. The baby died in birth a month later. This shows her devotion to her children. Discussing her baby sister who died in childbirth, the narrator notes:
She was a girl, but I rarely thought of her as a sister or even as a separate person really. I suppose you could call it the egocentrism of a child, of all young children, but I considered her a less finished version of myself.
The mother leaped to save her first child and did the same for the narrator. We could predict that the title "Leap" would be figurative, literal, or both. We might have predicted that the mother's athleticism would come into play later in life. Prediction number one: she took leaps, literally and figuratively, for both children.
A second prediction: the narrator has an unfinished connection to the baby sister she never knew, calling her a "less finished version of myself." The second prediction is that she will find some connection with her sister. In the final paragraph, she finds herself in a position similar to being in the womb; and the connection with the baby sister is alluded to:
Curled as I was, against her stomach, I was not startled by the cries of the crowd or the looming faces. The wind roared and heat its hot breath at our back, the flames whistled. I slowly wondered what would happen if we missed the circle or bounced out of it. Then I wrapped my hands around my mother's hands. I felt the brush of her lips and heard the beat of her heart in my ears, loud as thunder, long as the roll of drums.