Let's think about it. He already mastered hiruzens shuriken jutsu, shadow clone jutsu, asumas buring ash jutsu and the rasengan. Those are high rank jutsus and he's only a genin at the same age naruto was at part 1. By the time he's part 2 narutos age considering naruto will still be training him I think its easy to say he's going to have suprassed asuma by then and I think long term if kishi ever shows it, he might even be able to suprass hiruzen at some point. What do you guys think?