I heard somewhere (I really have memory problems, maybe it was an AL update or something) Fan! would only be performing to the press after the park closes. Anyone to back me up on this? If not, this may just be disregarded... I really wouldn't doubt that Fan! would do a soft opening today...
According to Mouse Planet this is correct but things could change!!!! Disney can pull some surprises
I just had a thought, couldn't Disney impress the press audience by giving them a sneak look at some of the backstage magic? They could give a backstage press tour of the pit with dragon and just call it a special preview. Of course no photos would be allowed but that would only intensify the sense of mystique and anticipation.