Here the first part of my possible Naruto ending:
Naruto fights Sasuke. They are equal, Naruto has a hard time getting some good hits, because of Sasukes Susanoo. However, Sasuke can't keep up with Narutos speed. After some clashs, Naruto is about to use his tailed beast bomb, which makes Sasuke use his Amaterasu. The Moment they are about to use their jutus, a big rave gets out of Narutos mouth. The rave forms into Itachi who jumps into the middle of those two. Naruto immediately fells on his knees and begins to cough.
Sasuke just watching with horror, stops his Amaterasu.
Itachi : Sasuke.
Sasuke: ...
Itachi : If you think, you are the avenger, i'll tell you that you are not.
Sasuke: How can you say that brother? Why did you do all this?
Itachi: Madara, is evil. He uses you, i wanted to save you from his manipulation, but it seems that all i did was nonsense.
Sasuke: I won't follow your path brother, i can't. "Begins to cry"
Itachi turns around to Naruto.
Itachi: Naruto, what are you going to do now?
Naruto: I gonna deal with his hate and we both die.
Sasuke: ....
Itachi: Wasn't your dream to become Hokage? Why are you sacrifising everything for my brother?
Naruto: Hes like a brother to me, too and you must understand the best, what it means to sacrifise everything for your beloved brother.
Itachi: ....
Naruto: I think you know, that we can't kill our feelings for each other, not even if the other person wants you to be dead, not even if he already killed people you love, if you do the same, you will create more hate, which will turn to an endless circle of hate. I will die together with Sasuke and the world should never forget the reason for this senseless killing of each other, it was only hate.
Itachi: ....
Sasuke: ....
Naruto: Sasuke knows, what he could have had and what he still has, but Madara took him everything away, i just know that i can't...
Itachi: Help him anymore?
Naruto: I can't...."begins to cry"..go back on my word, thats..my ninja way. Sasuke and me will die.
Itachi: ...
Itachi: I will honor your wish Naruto, i thought you will need my power someday, but i think yours is greater then i ever imagined.
Itachi turns back to Sasuke, walks to him.
Itachi: Im sorry Sasuke, for everything. "Itachi pokes him" and dissapears.
Silence.
Madara enters the scene.
Madara: Sasuke i don't want you to die, lets take him together as one Unit.
Sasuke: ...
Naruto: ...
Madara engages, attacks with all of his collected tailed beasts at the same time, Naruto doesn't move.
A big explosion. Smoke.
Madara: ....that must be a joke.
Susanoo protecting Naruto. Naruto looks up, Sasuke next to him.
Sasuke: Dumbass, i can't protect you all the time, i once nearly died because of that.
Naruto remembers the fight with Zabuza and Haku.
Naruto begins to smile, crying.
Naruto : Sasuke...
Sasuke: Stop crying, this is not the right place you idiot.
Sasuke reaches his hand, Naruto gets up. They face Madara together...
to be continued

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Im sry for the mistakes^^ my mother-language is not english

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