Eh, if Sasuke "died".. Naruto's theme would be kinda ruined, Izanagi or no. If Sasuke loses this fight without Naruto going through hell and back (extreme difficulty), then Kishimoto is kind of ruining the hype he built up with this chapter.
I dunno, personally.. it'll be poor writing if Naruto just "wins". I'd like Sasuke to win, but to show mercy to Naruto and lower his guard. Giving Naruto a small chance to defeat Sasuke and somehow strip him of his powers. Right now, Kishi is damned if Sasuke dies, and he's damned if Naruto is defeated.. so he has to find some logical middle ground that makes some kind of coherent sense.
Which honestly won't be too hard. I have a little faith.