Is there a chance the (Hypoglycemia) condition might come back following discharge from the hospital, and is there any special need for follow-up?

As long as the baby is feeding normally, the vast majority of babies will not have any recurrence of low blood sugar, and no special followup is needed. In the rare cases of severe and prolonged low blood sugars where surgery, medications, and/or a special diet has been required, those infants will need continued monitoring at home and follow-up with pediatric endocrinologists, doctors that specialize in disorders of hormone levels or metabolism.