Yeah, can't see that happening any time soon unfortunately. :(The CM's schedules are pretty full-on and 'flexible', in the way managerial can invariably vary their shifts with less notice than you would want.
They'd have to employ lot more staff - and it's also more about the down time they need to clean, maintain, check EVERYTHING...considering DLP opens 365 days a year, don't see how they'd be able to keep it open all night....
....(bearing in mind the frequent ride-break downs that happen), and stay open trough to the following morning.
But maybe, one, or two, 24hr hour events, they could manage if they really wanted to?