Why?
Because that would, at last, make this story exciting again. Sasuke would even come across as looking like half a formidable villain - fools the old Hokage so Tobirama doesn't kill them on the spot, plays along until the world-ending threats have passed, and then BAM! Takes control of the Hokage, kills Orochimaru and his cronies (that's not really necessary but what are they even doing in the story at this point? Might as well get them out of the way now and get it over with), and then attacks the weakened Ninja Alliance. - He would have fooled EVERYONE, the Konoha 11 would have realized they were f*cking idiots when they trusted the man who MURDERED THEIR TEMPORARY LEADER IN COLD BLOOD while Shikamaru just goes "see? Told you".
We would finally get out of this incredibly stupid and pointless arc, dispose of these awful villains, it would solve the problem with "oh right the Hokage are actually zombies, what are they going to do when this is over?", it would even make Sasuke's desire to be Hokage actually make (a twisted kind of) sense.
Do I think this will happen? No
Do I think Sasuke will survive, redeem himself and be forgiven by everyone and end the curse of hatred? Yes
Do I think this would be more original, unexpected and believable (as far as Naruto goes, where motives don't matter and logic doesn't make sense)? Oh my, yes.
Because that would, at last, make this story exciting again. Sasuke would even come across as looking like half a formidable villain - fools the old Hokage so Tobirama doesn't kill them on the spot, plays along until the world-ending threats have passed, and then BAM! Takes control of the Hokage, kills Orochimaru and his cronies (that's not really necessary but what are they even doing in the story at this point? Might as well get them out of the way now and get it over with), and then attacks the weakened Ninja Alliance. - He would have fooled EVERYONE, the Konoha 11 would have realized they were f*cking idiots when they trusted the man who MURDERED THEIR TEMPORARY LEADER IN COLD BLOOD while Shikamaru just goes "see? Told you".
We would finally get out of this incredibly stupid and pointless arc, dispose of these awful villains, it would solve the problem with "oh right the Hokage are actually zombies, what are they going to do when this is over?", it would even make Sasuke's desire to be Hokage actually make (a twisted kind of) sense.
Do I think this will happen? No
Do I think Sasuke will survive, redeem himself and be forgiven by everyone and end the curse of hatred? Yes
Do I think this would be more original, unexpected and believable (as far as Naruto goes, where motives don't matter and logic doesn't make sense)? Oh my, yes.