Alright I have a question.

this is what I understand about the death god summoning.

The third said when he was trying to seal Orochimaru up that the sealer and the person he/she sealed were trapped in an everlasting battle inside of the death gods stomache, and both of them die, was kyubi too powerful to die? Is the fourth still fighting perhaps.. some sort of kyubi inside of the death god or did he end up going to heaven for his sacrifice? Any answers?