We just got back and definitely did not need any express passes.. but, maybe check this out. My nephew ordered his ticket on line and choose the "print at home" option, so he printed out his ticket at home, and brought that with him. When he checked in at the gate they said he was entitled to an express pass and gave him one. BUT.. this was the 3rd day.. he did not receive this on the first or 2nd day, so don't know if that was an error on the part of those people ticketing him , or if it only went into effect on the 3rd day??? So check that out on line.. maybe it explains it there.
If the crowds are anything like what we had.. the wait was very minimal.. longest time was simply walking through the mazes to get up to the front of the line!