Though not likely...it is possible that he could go the way of Gonzo for a year or so. It happened to Boris Becker...why not him. Once fame hits the young guys who seek and love the spotlight, invariably, the fairer sex around the world jumps into the game...and distractions follow.
The fact that Sharapova was in his friend's box, shows that there MAY (not certain) but MAY be a lapse in concentration for a year or so. But, I fear, it will not be long enough for my tastes.
That kind of thing happened to Safin too. However, it didn't happen to Roger because he has Mirka
You can't prejudge and think that any player is going to be just like another. The fact that Sharapova was in Djokovic's box might also mean nothing at all.