Hey, I've been thinking, and remember how was it that Sasuke and Naruto end up fighting at the hospital roof?
Sasuke had just been cured by Tsunade and hadn't left the hospital yet. Sakura was tending to him (cutting him some apples if I remember) and then Naruto came by and Sasuke snapped and they fought and then Sasuke became teh evil!!!11.
So now, with all these filler episodes, we have Sasuke going out of the hospital real soon, doing silly, silly missions with his friends and making stupid faces at the drop of a hat...
...how will they explain the transition between happy-happy Sasuke and teh evil!!11 Sasuke? How will Naruto and Sasuke end in the hospital room trying to kick each other's ass? Even more, when will Sakura get her chance to cut apples for Sasuke???? (fine, that's not important)
You think they maybe will injure Sasuke again? Or maybe they'll be visiting Lee or something and Sasuke starts remembering how Naruto beat Gaara and then his brother and then he'll drag Naruto to the roof?