They should return Chakra back to the Shinju.
I doubt that would happen. As it was stated, Ninshuu only failed because of Black Zetsu.
Also returning chakra to the tree means the Bijuu will cease to exist. One reason is that Naruto is fighting for their freedom.
If all chakra is sent back to the God Tree, then a new Juubi fruit would be born and someone else would eat it and become like Kaguya. Way more risky than the other way around.
With my version at least, Naruto and Sasuke's difference of opinion leads their final conflict. Naruto wanted to preserve chakra, Sasuke wanted to get rid of it.
Not bad.Tho the real thing will be much more unpredictable...I predict.
Yeah I know, but like I said this is kind of my fan-service to myself haha
These are the things I wish would happen
It's because of things like this that people throw a strop when things don't turn as they wanted/expected.
Everyone have their preferences. I'm sure even you to some degree wished certain things would have happened.
This is just my version of the story's end, not a prediction, because I'm certain almost none of this would happen.