On one hand, I don't think he would ever want to have a YT channel. He'd rather not share more of his life than he did. On the other hand, it could be a platform on which he could do Q&As and answer only those questions he deemed respectable enough. It would be a good alternative to interviews. I would love to see that! I know the question isn't "What content would you like to see on his YT channel" but the thought of watching vlogs of his adventures, and his creative process, fills me with so much joy. Your prank video channel idea is very sweet. And he did like to give advice ("Study the greats and become greater").