You know what? Orochimaru and Kabuto failed in finding Shisui's corpse. That's why Kabuto got shocked and amazed when Itachi freed himself from Edo Tensei.
The scrolls talks about some power and Orochimaru knows how to use it. But that does not mean that "the one who knows everything" is related to that scroll. Sasuke will use the power from that scroll only if his hatred towards the village increases after knowing the truth about the clan otherwise not.
Orochimaru knows who the person is who knows the truth about the Uchiha clan, but its not Shisui otherwise Orochimaru would have killed Shisui and Kabuto would have resurrected him through Edo Tensei since there's no point in hiding him somewhere. Even Edo Shisui will not have the eyes after resurrection.