It may be too late for that, as WDI has manufactured set pieces and gone so far as to submit permits for their installation (I think I remember seeing those filed this past summer in the permits thread.) But since we can't see how far along they've gotten on the inside, it is possible that they could make changes to what they had planned.
But I will admit, I was a little surprised that they didn't force the makeover of WoL to further develop it as a festival center. Not that that's what I personally would have wanted...
I guess they could always make one half of the pavilion a "play" area aimed at kids while the other half caters to entertaining the adults with food and beverage. The concept art already evokes a sort of dance club atmosphere. Let the "hotel" area be a place where both children and adults can pass out