All info still says "Late Summer 2013". Considering the first day of fall isn't until Sept 22, technically they could reopen Sept 21 and still be in line.
I have no doubt the are monetary incentives for the contractors to finish early but considering the place is (was?) completely gutted down to the concrete, there were reportedly roof/structural issues to deal with as well and given the age of the building/time since last rehab you never know what surprises they may face, I wouldn't expect them to start taking ADR's until 30 (maybe 60?) days out at most.
Right now, only time will tell I think.