I don't know about anyone else, but I didn't like Sasuke's attitude when talking to Hashirama. Hashi's like "Here, take this jutsu, it will help you," and Sasuke's like *Napoleon Dynamite voice* "Do it yourself! Gah!"
Who has time to argue about getting a free power up when your friend has just fallen on the field of combat? And what did Sasuke say? "The most I'll willingly do...." Sasuke is speaking to Hashirama with the same condescension Madara was speaking to the zetsus.
He seems like he's still on his own side. He doesn't show any concern for Naruto, and instead moves right on to his bigger target, Madara. (And ultimately, if Sasuke's end goal now is to be Kage, then killing of Madara and ending the war, all while Naruto is out on his sick bed would be an opportune time to do it. Sasuke would get all the glory and credit while Naruto was out cold. Just a thought. (Would make a good fanfic too!))
You totally beat me to it with the above. I was irritated at Sasuke (nothing new) for his condescension, but at the same time was not surprised. Sasuke brings Shakespeare's words to mind once again, "I never can see him but I am heart-burn'd an hour after."
For a moment I was surprised at Hashirama, but then I realized he is locked in the past. He is, very truly, like Naruto -- always wanting to believe the best in someone, willing to give and hope even when it is not warranted. He wants to believe that Madara is reachable, redeemable, even after all this. More proof that previous generations have failed where the current one will not, I suppose.
I remain somewhat mystified by Madara's motivation. What was all the grandstanding about making a sacrifice to save another? I can totally see him being angry with Sasuke for not being a proper Uchiha who stepped up to "do something" but Madara ought to know better. If there's one trait of his people, it's that they do whatever they damn well please -- himself most of all.
Yeah, I didn't expect to see Sakura, either, but that's because I gave up trying to guess what Kishimoto is going to do a long time ago. However, I did approach this chapter with the expectation that it would focus on Naruto, only to get... Sasuke. 
We need a heartburn emoticon.