Hmm... let's see:
1-I wouldn't want the death of either Naruto or Sakura, but if it were to happen, then hopefully they can be revived. For some reason I still see something like this happening due to how great of an impact this can cause to anyone (like people don't realize how much they cherish someone when they are about to lose them). I know some people don't want this to happen because they want both Naruto and Sakura discuss/realize their feelings without resorting to something like this, but for some reason I can see it happening.
2-Like many people have stated, I would not be happy if NH/SS happen due to how much development NS has. I could accept a proper explanation of their development, but I'd still be disappointed.
3-Apart from the main two, I would also be discouraged if these last battles do not last a considerable amount of time. I still feel like the Itachi vs Kabuto was very cheap, so I don't want something like that happening in these battles.
4-And well, as much as I feel like Neji's will is something that Naruto will keep in mind, I wouldn't like it if an ending like this happens. Someone dying just to give a minor character development.
Anyway, those are the ones I can think of right now.