Board Thread:Theories and Speculation/@comment-12654584-20180815152132/@comment-5407586-20180815163006

Isn't this the Yasakani jewel?

About Kishimoto having plans for Shisui, I doubt it. Perhaps a flashback, but for him to get more involved in the overall story, no. Unless the mangaka hadn't decided from the start who Tobi would be, and Kakashi Gaiden was just a way to buy time and make readers think the mysterious individual was Obito.