Didn't you just say Naruto was becoming a fairy tale? What you are saying sounds like one.
Naruto and Sasuke fight. Naruto is wounded and retreats, after beating Sasuke.
Madara shows up, and challenges Naruto to a fight. Several of Naruto's friends show up as well.
yada yada yada~ alot of talk and fighting...
Sasuke returns after Naruto beats Madara (with help, duh)
And realises that Naruto has become truly powerfull. After more fights, i don't know whom they/he will be fighting, but anyways...
Naruto sacrifices his own life, along with Sasuke. The village will realise how wrong they where about Naruto, after Tsunade gets angry at them. (or anybody else rofl)
The mountain will be shown, with a new face on it. Naruto's face. A hokage, even in death.
That is how a manga could end. Drama, instead of a "happy-feel-good" ending.
Just a thought that crossed my mind, i'd love the happy ending though. I can't just watch Naruto die, it would be really painfull for me to see ya know.