I never thought he was. They make you think he is near the end of the first half but even when Naruto, Sakura, Sai, and Yamato meet up with him at Orochimaru's base he doesn't get anywhere near killing them and the only reason he was going to was because Naruto wasn't going to back down. His compassion for Team 7 is still there. Same with Konoha, the only people he wants to kill are the elders and most likely doesn't want to bring any harm to the town itself. Don't get confused with his horrible wording.
Thats why my theory basically goes with Madara taking out his revenge in the upcoming invasion of Konoha and Sasuke being betrayed by that. From there Sasuke will join up with a scattered Konoha and reform Team 7.