Ah so like Sasuke meeting Kawaki (and maybe a few others) going through a hard time, and decides to teach them things and become their Master. And then we have a setup of Master's student vs. Master's student, but two opposite sides of their ideals, conflicting from both Sasuke himself?
Like one wanting to rid of the system (revolution Sasuke), and one trying to maintain the system by protecting it in the shadows (Adult Sasuke).
It would surprise me though, but I hope they try a different angle. Somewhere more evil like how Orochimaru just turned corrupt. I'm kind of hoping Kawaki is just a dude who hates the ninja system (for what-ever reason) without having the need for him to be compensated for his grief.