I most likely see sasusaku dying in the next volume to be honest. It's the fact that anything that is there is that sakura loves sasuke. That's all they have had from pre shippuden up to now. Even when sasuke is back there is still negative development towards this couple. I think kishi is now going to fully try and end SasuSaku, I don't see that continuing much further. As for narusaku, I see it being confirmed at the end of the war by kishi. I don't see why he would stretch it out much longer. The next volume we should most likely by the end of it get to naruto vs sasuke fight hopefully. Interesting to see what would happen there.
I totally agree with you. The negative SS development is really obvious. A lot of people keep saying that Sakura's fake and forced smile only shows her mistrust towards Sasuke. Yes, she's also doubting Sasuke,
but it's rather an expression of conflict and emotional pain.
I also think that the Naruto vs Sasuke fight is gonna come soon, there are actually three panels
foreshadowing that:
chapter 488, page 14, panel 1 showing Naruto's serious expression and grey face
chapter 634, page 19, panel 2 showing Sasuke's sinister expression and shaded face
chapter 635, page 17, panel 1 showing Sasuke's sinister expression and parts of the face are shaded, even the Sharingan, which is centered and emphasized.
Furthermore, Sakura's fake smile could also be a foreshadowing. No matter how you see it, there's something tragic being hinted towards.
Also, a lot of people in neutral forums say that Sakura would trust Sasuke, if she knew the truth about him.
I'll just copy what I wrote in another forum:
The truth about Sasuke includes the fact that Sasuke actually decided to go against Konohagakure
of his own accord. Obito didn't use any Genjutsu on him.
Furthermore, Obito offered Sasuke one of the Bijus. Sasuke didn't even know if that Biju would be any good since he didn't have any techniques to use it efficiently, but he accepted the offer right away. Obito did not say 'I've manipulated Sasuke' to Kisame. In chapter 404 (page 17, panel 5) he says:
'I've won Sasuke over'
So if anything, Sakura would be shocked if she knew about all the decisions Sasuke has made so far.