That would have been way too Inceptiony. I think the audience needed that feeling of "Bruce Wayne is finally living his life." without any ambiguity.
He's got no money, no problems and is off in Italy fucking Selina Kyle every day.
I was expecting Bruce Wayne with his back turned and we would only see Selina facing him/the camera. A direct acknowledgement that Bruce is alive but not quite him lounging back and grinning back at Alfred