I enjoyed this chapter, I think that while a little bit late in the series to establish naruto and sasuke's relationship, i don't think it hurt at all to do it. Not everyone has been following the series from the beginning anyway so a lil reminder of what their relationship was like before the time-skip, and adding the handshake is hardly a retcon, or at least not a retcon in the tradition "they changed it" idea. It doesn't contradict anything that previously happened.

It's still not as smoothly implemented as Itachi's head tap/fake eye gouge.