I know that Nathan has not been certain about his future plans, but personally, from what little I know, I would be surprised if he did not at least take a break from competition next year.
Not because he can't do both. He can. His skating has improved as a full time student at Yale, I think it did wonders for him *as a skater* to be out in the academic world.
But because it appears he really really really likes Yale and is excited about taking advantage of all it has to offer and is excited about his life after skating.
What does he have left to prove in skating? nothing, zilch, nada. He knows there is life after the rink, and I admire him for that.