He'll probably be invisible. It's not the way to use him, at all.
First of all, he doesn't suit us and our style at all. He is a system based player and we use much more of an individualistic style of play (nothing wrong with that, it's just not his type).
Since we have him, he isn't suited to our #10 so we need to stop playing him there. #10 for us is basically the most important position for us, has to get involved and be risk taker and do things on their own/make things happen. Van de Beek is a support player who is far more suited to playing as one of the deeper 2, next to a DM who can help progress the ball up the pitch, control the ball, play through pressure and occasionally provide attacking support while providing defensive support.
If we keep playing him as a 10, he'll continue to do nothing. His only hope at finding a role at United is basically to rotate with Fred and McTominay, not replacing Bruno.