Are they combining resorts on one bus?
I am arriving at 11am on a Wednesday. I know my bus shares with Sports, Music and Movies.
There is
NO way of knowing in advance what resorts you will share a Disney's Magical Express bus with. The fact that the three All Stars resorts share Disney Transport buses (the buses that run between the resorts and the theme parks) has NOTHING to do with the groupings on Disney's Magical Express buses.
DME was always a shared-bus system. It was never envisioned that you would get on a bus that goes to only one resort ... never. It
could possibly work out that way if they know enough people are going to that resort at the same time, but I imagine that's a pretty rare occurence. By policy, there is a maximum of 4 resorts per DME bus. But if the bus contains resorts that are in two or more different DME zones, then it's a max of 3 resorts per bus.
Generally speaking, they want to group DME buses by geographical area, but this is not always the most efficient way to do it. For example, there might not be any guests arriving at the same time as you who are going to the other two All Stars resorts ... unless there are supposed to be about 50 of you arriving around the same time, your DME bus will go to other resorts in addition to your one All Star resort.
The groupings of resorts change on a constant basis. Because reservations are required, they know about how many people are going to which resorts at about what times, and therefore they're able to make bus groupings that maximize efficiency. As far as the ROUTE a bus takes, that is decided 100% by the driver ... there are no rules about the ORDER of drop-offs for a given bus. The only exception to that is Polynesian and Grand Floridian: if there are guests from both resorts on the same DME bus (which is very common since they are next-door to each other), Poly guests MUST be dropped off before GF guests, due to the simple fact that a large motorcoach coming from GF can't physically make the tight left turn into the Poly complex that would be required if coming from that direction.
The DME bus/luggage zones are as follows:
MK - Grand Floridian, Polynesian, Contemporary (and Bay Lake Tower), Wilderness Lodge (and villas)
EC - BoardWalk (and villas), Yacht Club, Beach Club (and villas), Caribbean Beach Resort
AK - Animal Kingdom Lodge (and villas), Coronado Springs Resort, Pop Century, all 3 All Stars
DD - Saratoga Springs Resort (and Treehouse villas), Old Key West, Port Orleans French Quarter, Port Orleans Riverside, Fort Wilderness Resort & Campground