The good thing about that is that we can make all the nonsense predictions we want, because what's going to happen will be nonsense anyway. 
Kakashi's arc is pretty much over, but Sakura's turn won't be for a while..I think. She has more potential in the Team 7 conflict than the Madara battle. Because it's personal to her.
If Kishi writes at least parts of that arc through her eyes, it would be great. Not directly a narrator, just make her a center, kind of like how she was in the kage ummit arc. Because Sakura has potential to be some sort of a neutralizing bridge between Naruto and Sasuke. Besides, while they have made up their mind on what to do with it, she is still conflicted. Sakura is the centre of the romance sub-plot, so writing her as one would be great because it all depends on her. Not just talking about who she chooses in the end here, I also want her to decide on her own what part she'll play in Naruto and Sasuke's conflict. I would like to see her development close-up, and how she reaches that decision. I'm thinking of this as a possible follow-up to the summit arc.
Who makes less sense, Kishi or me? ;p (jk)
It probably won't happen, because I think Kishi is a bit wary about writing women like this. He says he can't write them, but that sounds like he puts their gender a top priority. If he just focuses on writing her human, I think she'll be fine and her beautiful´ femininity will peek through.
And there is hope, because like I said she has been a central figure before.
I tend to think his statements on writing about women and love are a bit of a fib— or at least, he's gotten more confident over the years – because Konan and Kushina were written beautifully. And this whole dang manga revolves around love.
As for Sakura, there's certainly more to come from her. She herself has said she hasn't unlocked her full power. And power-ups of all kinds are given liberally with no hint of it to come. So with that track record, there's no reason why Sakura shouldn't.
But, I know I've said this before, the biggest indicator to me is that for this story to end, one girl has to be pushed out to the front to be choice for Naruto. To undo the frenzy of suspence Kishimoto has created, he must develop Sakura and Hinata's storylines to prove one is the better choice, while one is going to go off and fulfill her life's duty elsewhere.
Kishimoto can't just end the conflict with Madara and then wipe his hands and say "that's it! We're done!" The subplot is about Naruto's romance, and it has to be resolved to a modicum of satisfaction. The way I see it, Sakura is going to have to get something (a power-up of some kind) that makes her irrevocably the top choice. It has not happened yet.
Why would Kishimoto do this and not just end the story? Because he has an obligation to the NH half of his fanbase. He's not going to leave them hanging, no more than he would the NS fans if the story went NH.
It's a head scratcher to me how people argue that her development is done, finished, over. The easiest way for Kishimoto to make Sakura look like the unequivocal choice is to give her a power/skill boost. Otherwise it's going to be backstory and flashback, etc., etc. and I don't think Kishimoto is going to go that route again. He gave Sakura her own storyline in the Gaara arc, and it ended there. Now her action is a tangent to Naruto's action. So I think her power-up will be the same: something that only she can do, that she pulls out at just the right moment to save Naruto etc.
I expect another moment from Sakura because above anything, Kishimoto has shown that he will do whatever he wants in the plot. No foreshadowing, no previous tie-ins. It just happens, especially in a flashback, and there it is. The audience and the other characters have to deal with it. So since there's still more ground to be covered with Sakura's character development, I'm expecting more aspects of her to be suddenly revealed, just like it's happened with other characters.
My money's on her coming in at the end of the battle with some unknown skill or missing link technique (as I said before, maybe a connection with senju), in some way that only Naruto can benefit from.
I don't think we've seen the last from Sakura.