Tomic wasnt far from pushing Djokovic to that 5th set in Wimbledon. I can see Raonic or Tomic beat these players in some fast court, like the first week in Wimbledon/Queens.
Novak has always had this tendency to lose his focus for a set etc. sure Tomic took a set from him at W but who really cares? I do believe that Tomic is the most talented of all youngsters but he has a long way to go.