I'm wondering how he will be part of us in the future, I don't see him taking Pirlo's place, but there will be no other vacancy in the midfield soon. IMO the best place he can take is the one of Marchisio, but I don't think that Il Principino will leave us soon, fortunately he will never leave us.
What I mean to say is that if he doesn't gets to be a regular starter soon (maybe in two years) he will get mad and want to leave us as he did with Manchester Utd.