I think that obito will be killed by madara becouse madara wants kyuubi for himself and obito wants kyuubi for the moon eyes plan so madara is stronger and he will kick obitos ass.:flaw:
I was just thinking: Sasuke could take all the tobis sharingans and take them to someone who can preform edo tensei (kabuto,oro). edo needs a piece of dna(sharingan) and a person (someone) so it could work.xd
We all know that in the begining kishi said that hiruzen was the strongest kage of ever. But he started to think about madara's resurrection and he realized that madara needed hashi to make marada stronger, so he gave more power to hashi so he made the mistake of puting hiruzen behind hashi...