No Rooney will not miss him and I think he is now happy as Ronaldo was big figure in Manchester United team and people forgot some player's excellent performance under Ronaldo's shadow like Fletcher, Rooney and Vida. I am sure this season Rooney will prove his ability to score goals as he will give more center position this season compare to last season!
No, Rooney now get back the best position for him after Ronaldo leaving. Now it is the time for him to score more goal