I've always assumed that once Tim was adopted, he was going to grow up to run Wayne Enterprises. And I may frequently write fanfic in that vein. Jack telling him here that he wants him to work in the business just cements that for me. Everyone just knows Tim will be a great businessman.
Despite everything that has happened recently with Red Robin etc, I still think it's possible for Tim to come back home eventually and patch things up with Dick. He's still calling himself Tim Wayne, after all.