It was an ok chapter.
I do think that Gai is going to fight Kisame again, but I think Gai is going to loose. I'd say this is more a consequence that Gai is going to face off against Kisame after Kisame captures Killer bee though (and is charged with Killer Bee's Chakra), rather then through any fault of his own.
If Gai does fall in battle, I think Rock will ultimately kill Kisame.
Plotwise, it makes sense for Gai to die. He's the second most well known special Jonin, second only to Kekkashi, and he's never actually lost while on screen. Seriously, he's won every encounter that he's had on screen. That sorta luck can't last forever.
After that, I think it's worth noting that if Gai dies, it will actually allow Rock Lee to develope abit. As he is now, he's very co-dependent. I'd actually like to see a strong, independent Rock Lee whooping Kisame's a$$ abit later on. Plus... if Lee beats Kisame, doesn't he get Samehada? I could be wrong aobut that aspect of it.
As for Naruto vs Oturan, I don't think the Fox will come into this battle at all. This is a fight about self mastery; Naruto may be the Nine-tails Jinchuriki, but the Kyuubi is an independent individual. This is a fight between naruto and Oturan, not Naruto Oturan and the Kyuubi.
If Naruto's going to have any hope of mastering the Kyuubi, he's going to have to master his own dark impulses.