I just read that the pied (harlequin) mutation IRNs isn't well understood. Possibly recessive, possibly partially dominant. There may be two types of pied as there are with budgies- dominant pied and recessive pied. Does your pied female have dark "baby eyes" or normal eyes? Does she have a red lower beak or is it dark? Both of these characteristics indicate that she's recessive pied. If they all hatch and mature you'll know more.
If it's recessive and the male isn't carrying the pied gene the babies will not look pied. If the male carries the pied gene half the babies will appear pied and half normal
If it's partially dominant, the babies could be pied.