1. Madara doesn't look "dead" anymore so can he die?
2. Pinky Attack? xD
3. Couldn't Tobi have just sealed Naruto in the thing Darui used to seal Kinkaku? I mean, he's stupid enough to fall for something like that.
4. I always wondered if Orochimaru could come outta Anko curse seal as well.
1. He's still Edo Tensei'd
2. I'm guessing that statue is a lot tougher than it looks.
3. That would require the other weapons/tools. He only had the reason and time to grab the gourd/jar.
4. It was stated by Kabuto that the Curse Seals have remnants of Orochimaru's chakra/essence. So it is possible in some way for him to come back. I guess it could be the Naruto-equivalent to Voldemort's horcrufixes.