Greetings from Asbury Park...OK, Tinton Falls, but we share the same ZIP so don't get semantic.
While I certainly wouldn't mind seeing a diner somewhere on property (it makes sense to me that it's be somewhere accessible by bus from any resort, be it DTD, the TTC, or just outside one of the parks (I like the idea of a Baloo's Diner just outside Animal Kingdom, do we really need two Rainforest Cafes?), I wonder if a 24-hr one will be necessary, especially with Pleasure Island going extinct. The cool thin about diners is going there before you go home from whatever nightlife you were enjoying.
On the flip side, I can also see one being so popular (especially after really late EMH) that there'd be days with ridiculously long lines, followed by days where there's more staff than customers. Probably more the former than the latter.
I think a more sensible solution would be an on-site all-night delivery service. I'm pretty sure there are off-site joints, like Domino's, that will deliver on site (unlike other non-Disney resorts, though, you won't find the numbers at the front desk or in a free handout right next to check-in. Disney wants you to spend money at Disney, period...er, I mean, they don't want the real world to infringe upon the magic. :lol: ). And I know all the resorts all have at least pizza delivery, but it's not 24-hr. Maybe if there were a single on-site eatery that delivered all sorts of comfort foods, either delivered to the room or the pool area, or a section of the lobby designated as a delivery-dining area.
Trust me, this is coming from a big diner fan. In fact, you find yourself in Eatontown, head on down to the All Season's Diner, try one of their buffalo burgers, and save room for a chocolate mousse flying saucer. Though my wife, a transplant from Upper Freehold, would want me to give a shout-out to the French Toast at Mastori's, the "hedge maze labyrinth in the Shining" of diners (so huge, so winding, so easy to get lost).