A 25-year-old male presents with primary infertility, meaning he and his partner have been unable to conceive after at least one year of regular, unprotected intercourse. As part of the diagnostic workup, the patient undergoes routine genetic screening, which reveals a microdeletion in the AZFa region of the Y chromosome. The patient’s semen analysis likely shows azoospermia or severe oligozoospermia. What is the expected fertility outcome for this patient?