If Oro returns from the snake then the story officially sucks. I mean come on! There has to be a limit to the number of times that guy can be resurrected.... if he is so damn tough to kill he might as well forget about the Sharingan and keep jumping from one "normal" body to another, until he learns all the jutsus he wants. Its not as if though somone is going to be able to stop him or anything is it?