well maybe if you had said that last week I would agree, but now the juubi is awake its a whole new ball game. plus, theres whatever sasuke is doing. there are so many variables, I love it.
But, keeping it simple, yeah you're right, obito is probably going to die, especially if his plan fails. Its not like he's going to want to live in the real world anyway... so maybe obito living would be a worse fate for him. honestly, i dont think kakashi is all that interested in the other eye. But if kakashi is going out, its going to be epic... something that they'll build a monument for him after hes dead