If Sasuke got his ass kicked by the current generation of the Five different Kage... What makes you think he'll even survive a fight against the four Hokage?
Here, pick one:
1) Hashirama buries Sasuke's sorry ass below another frikin' mountain with huge trees and **** before Sasuke can even say: "But my Clan...!"
2)Tobirama makes Sasuke drown in another frikin', mother****in OCEAN, and makes his insides be smashed under water pressure, before Sasuke can even say: "Chidori...!"
3) Hiruzen... Okay, I dunno what would he do so especially, but he definitely would do something before Sasuke can even say: "But Itachi...!"
4) Minato... Pfft. Is there even a need to say it? Oh, right. Uchiha lovers still say Sasuke is now better than Minato. Well, a huge ass Rasengan to the testicles, or maybe eyes combined with a Hiraishin no Jutsu level 2 might disagree with them. But hey! I'm sorry for underestimating Sasuke.