As the threadname already says my Question is if Kyuubi can stay in sage mode or not.
Here comes my prediction:
Kyuubi is always staying nearly without any movements in narutos body / soul or whatever. Therefore he might be able to convince Kyuubi as soon as he has gotten the big scroll of Jiraiya which allows him to combine the full power of kyuubi into himself and also weakens the jutsu that subordinates him at the moment.
As far as Fukasaku has already said Sage mode cannot be performed by each shinobi, cause it needs a big chakra pool. From my conclusion the power of sage mode is combined with the chakra of the being which wants to get natural chakra. Naruto has middle / high chakra without the kyuubi and could perform sage mode, but i think the power / chakra you receive from nature is proportional to your own one.
Therefore kyuubi could get the most chakra gain ever, cause he is the bijuu with the biggest chakra pool and therefore able to handle most chakra
Then the real Naruto could ever fight and let Pa-Frog and Ma-Frog aswell as Kyuubi let perform sage mode and will be able to knock down all things and beings.
What would you say to these predictions / this prediction?
thx for reading