Of course his agent is pushing for a move to Manchester United. A blockbuster move would mean a decent chunk for Felicevich. That lousy thug is cashing in this transfer period.
If Champions' League is Vidal's objective, I would think he stays. He'll give it his all this year and when the wheels fall off in February/March (elimination from CL vs. suprise Round-of-16 opponents Steaua Bucharest), he'll leave for Spain next summer. Juventus will replace him with Stanciu.