If Minato could be summoned from the death god belly ONLY if someone summons the third hokage in battle. Third Hokage > everyone in the manga so far except the death god since he sealed Shodai, Nidai and orochimaru ninjutsu into him self.
Originally Posted by WTF??
^ Yeah, on his way back to the village now, he should make a shadow clone and henge it to Minato and introduce him to everyone in the village as his father!!!
Remember. People cannot know they are related because trouble might arise. It is not Akatsuki i tell you.