So we learned that you can obtain sage mode from places other than mount myouboku. Orochimaru and Kabuto learned sage mode from a place called Ryuchi. When we last saw sasuke he revived oro, and asked to see the " ones who knew everything." In real life a "sage" is someone who is wise or knows everything. Orochimaru also said to sasuke that he was going to take him to a familiar place. In the time of his training with oro, he could have already been to mount ryuchi.
My predictions. Sasuke will train with these sages and learn alot of info about everything that has happened since the sage of six paths. I believe he will also learn sage mode.
With these new powers i believe sasuke will come and team with naruto and show the world just how powerful they have become.
In the end however after the threat is over i believe one or two things will happen. (a) sasuke will still hold on to his hatred and will challenge naruto to a fight for Konoha. Both of them seeming to be a type of "child of phrophecy", naruto will be the worlds savior, and sasuke is the worlds destruction.
(b) Sasuke will start to lose his intrest in vengence after the wisdom he gained from the sages. Sasuke however still wants to fight naruto for some mystical reason, like to read each other thoughts thru fist or something like that. This fight will make sasuke lose complete intrest in destruction as naruto has a thing about changing people.....
Either way in the end I believe Naruto and Sasuke will finally be able to fight on truly equal terms, from Genin ninja to sages.
Sorry can't support your theory Sage-Mode
isn't for everyone and has to deal with a
specific body type and if the 4th/Orochimaru
couldn't master it noway Sasuke's gonna
do it. Another thing that would be a total copy of
Naruto's abilities and i don't know if
you've noticed but even though Uchiha's
can copy moves they don't or use em the way
Kakashi does (Must be a pride thing)
Its a good theory to start but to be truly honest,
I dont think we should start believing or thinking
that saskue will "team up with naruto".
To put naruto more clear from where I see it, its
sort of related to greek myth and thats
Hades=Saskue and Zeus=Naruto i know its a very
very bad thought but dont let my thought make you
mad or change or whatever
I swear to everything profane, Sasuke had better
not learn Sage Mode. He doesn't deserve Sage
Mode. He already has the Sharingan, which
apparently can probably still become the Rinnegan.
I was really hoping that Sasuke would team up with
Naruto, but with what happened recently in the
manga with everyone else showing up, it's
made me lose a bit of hope for that ending.