This is the first time he will be in the spotlight. EVERYONE is expecting a soft quarter. What investors want to hear is about gambling. My guess is that he will announce an aggressive push in to not only international markets but also here at home. I wouldn't be surprised to see a $50-.75 jump on guidance and looking forward statements. The bottom is absolutely in.
Worst case scenario is stock trades sideways. Even if it sells off, those who sold off FB today with gains will use the houses money to buy in at the bottom and turn this around back to the 3's again. Wake up and smell the coffee.