death dosen't let you say goodbye

shisui, fugaku, and Mikoto uchiha are dead, but a god know as kami sees they were good people. so he gives them the ability to watch over there son/friend itachi, but he can't hear or see them. they watch him go through hardships and terrible things, what if one of them were granted the ability to come back to life. who would it be?, are they too late to save itachi?