While we can only find out. But don't forget that he asked her to kill Karin. The other things to consider are that Kishi called it a selfish love, and that Sasuke has never been the romantic type and as evidenced by his reaction to Karin isn't likely to change. Why is Sakura's love selfish? Is it because Sasuke is evil? Is it because it is one-sided? Or is it because Naruto has sacrificed so much for her because he loves her? That part is vague but the fact that he said selfish means two things.
A. That this is a negative aspect of Sakura
B. Because it is negative, it will be an obstacle for her to overcome
Sasuke's motives are still unclear. Though he has pledged to protect the village, after Madara and Tobi are defeated what will he do next? Personally I don't buy the whole redeemed idea, however considering we haven't gotten a new chapter yet:
How were Hashirama and Itachi able to keep peace? Through power. Hashirama killed Madara[or severely injured him] when they fought, effectively ending his threat to stability. Itachi murdered his whole clan in order to preserve that stability.
Because of this Sasuke will most likely take a totalitarian approach after this war ends.
Naruto, whose mentors have supported an alternative to power for peace will consider bonds the way to maintain peace.
They will clash and as long as Sasuke believes that power is the way, then Sakura cannot support him and he has not changed.
Sakura fell in love with Sasuke but again it was an idealistic one, basically every young girl in their class save hinata had a crush on Sasuke. Sasuke was just the ideal preception of them, but remember sakura was young and did not know this, until the rescue from gaara and promise, she did not take naruto as much. Naruto gradually proved himself and she did learn that Sasuke was not perfect. This far into the series though she can have the feelings based on one part drama, I mean it has to be on her for a while longer to in effect get over Sasuke after she saw what he became, but it's also due to her should she reflect on what naruto did with and for her and in the same way she did it for him. Even with new Sasuke, one thing remains in effect, she knows he never loved her yet naruto does. Sakura is aware of his love for her and naruto is not aware she knows, one thing about maturity is sakura learning that naruto did efforts for her and she for for him. She is aware someone loves her and has reason for it, basically over the shared pains, sakura is close to naruto and considers him very important.
Even with new Sasuke, this does not change the fact of what happened in the past and unless Kishi really wants to hit the sucidie button on Sakura's character development, then he would have her go back to Sasuke but I feel that even with new Sasuke she would take naruto over him because it was naruto who made her strong and she made him stronger.
Aside from the long development, parallels, layout of the story, and unanswered questions with her mainly chp 540 and 615 moments with her, I feel narusaku will come by in a few ways,
Narutos I hate people who lie to themselves, it may hit her where it matters, she can be in a state of confusion for all we know or letting go of him, but in maturity one thing that happens is characters become honest with themselves, naruto had to be honest with himself for his dark side, he never showed any hatred to the villagers for the longest time in the series yet he still harbors it deep within cause it though his first bonds made him better and saved him from loneliness, he still had the experiences of the past come on him again and again in parts 1 and 2. Naruto was honest with himself and had to believe in himself to let go of his hate. Sakura can do the same with Sasuke.
Sakura needs it for her development, she still has it for story reasons but as dumb as it sounds for her to still have the ideal crush, Kishi designed sakura to represent human weakness, what is the biggest human weakness? Emotion, what is the biggest emotion? Love. Sakura is basically fighting her biggest weakness as I see it and can overcome this. It's funny how sai never noticed that as much pain she and Sasuke cause naruto pain, they are also his biggest sources of strength. Sakura draws much of her strength from naruto no doubt, that's just another in a long line of effects they have on each other. They are both sources of each others strength, sakura can find new strength in love for naruto over Sasuke which has been her weakness.
Finally, it's just basic character development, any type of sakura returning to Sasuke is bad and just would give a legitimate reason for people to hate her and prove sakura had a weak will, basically the biggest butchering of any character in the series if Kishi went this way. I don't think he would do it, maybe come close to troll us into thinking she actually went back to Sasuke, but that would be bad. Much of Sakura's development has shown she moved away from him and towards naruto, much of their biggest moments had great emotional impact on the other. Sakura cried over naruto 3 or 4 times now right? Those were real feelings she had for him. She cares and has close feelings for him, that's a fact. Her development just also goes full circle for her to have hated naruto in the start and end by loving him. It's pure and simple, her development this late is slow and a form of dramatic struggle internally for her. Sasuke cannot just take back his actions, unless Kishi really just wants a cheap easy way out and a one way ticket to butchering Sakura's development and purpose on the journey to help naruto in the first place, then he makes her love Sasuke again, when there was never a reason for her to do it. Naruto there is a reason. Sasuke bad for sakura, naruto good for sakura, it's funny how from a character design point and even the story this still factors in. Basically narusaku is still a good ending and gives naruto and Sakura's characters the development they need, if fulfills Sakura's full circle, she can forgive Sasuke, that's okay but not return to a love which never existed. Narusaku also gives narutos character a sense of fulfillment and a sense of a love which was struggled with but finally earned and achieved because of his efforts but also due to Sakura's for him, in the end they go together because they accept and want to be, not out of second choices or obligations, because they want to be together, that's if everything goes this way.