So Everybody. Who wants to guess what exactly Sasuke wants to know from the Hokages, and Why do they have to be at the Uchiha hideout for it?

Sure the Hokages were witnesses and participants to history, but what could they possibly say that could enlighten Sasuke to affect his lust for Konoha's destruction?

Unfortunately I am not able to deduce what Kishimoto is up to, and I'm wondering what you guys think.