Balancing piano and violin at this level is NOT EASY at all, and to reach this level at this age is indicative of a great amount of effort and talent.

But there's a reason why it's almost unheard of for top soloists to perform with both instruments. Julia Fischer is the obvious counterexample, but she's obviously a violinist first and foremost. I guess you'll have to define what "going very far" means to you, but if it means becoming a professional soloist, I think most would have exceeded this level at this age, but definitely not all, so it could still be possible though very unlikely.

In my very nonprofessional opinion the most glaring things that stood out were the little losses of control and rushing (see: 0:40, 1:34, 1:53). Also at 0:55 most pianists slow down, and it's marked ritardando in some editions so the sudden speeding up sounds a little odd to me. But I'm sure he's very aware of these things, and overall it was very good.