I don't think Sakura would take that waterfall challenge. I do believe however is that she's not confused about her feelings. I believe that she moved on from her crush on Sasuke a long time ago (and when I say a long time ago, I mean sometime between part 1 and part 2) and fell in love with Naruto since before or at the start of part 2.
About the Zetsu clone army (of the Galactic Republic
). What if those Zetsu clones could make up to 1,000 clones of themselves (like Naruto's Shadow Clone capabilities) and each clone of the 100,000 Zetsu clones could do the same and so on? That combined with that copying Jutsu would make Zetsu an ultimate, nearly limitless, invincible army. But I do hope that Madara has manipulated the other small villages to his side and are lead by members of powerful clans (one from each small village). I also hope that there will be a group of nine Arrancar/Homunculi-like super-humans leading the Akatsuki army (hey if Madara could create an army of Zetsu clones I'm sure he could do the same for super-humans) representing nine of eleven aspects of war.
I would also like to predict that Kabuto might have stolen Danzo's corpse from Madara and reconstructed the Sharingan eye of Shisui to implant into Kakashi's uncovered eye thus giving him an eternal Mangekyo Sharingan (that is only if Shisui and Obito are siblings) and gaining that mind controlling jutsu (which I think would be called Will of the Gods in Japanese) and maybe Tsukuyomi, Amaterasu, and Susanoo if we're lucky. I also believe that Kabuto would add Kisame, Hidan, and Konan to his collection of dead Akatsuki members for a complete set.
So basically, I have the same opinions as in the spoiler thread (some I can't remember), good chapter, looking forward to next week.