One constraint they've followed is that they've kept all the charter bus stops the same between the pre-mid-august version and the post-mid-august version. Unfortunately, they didn't have enough spots on the one side for the Disney resorts and three got relegated to the drop-off-area stops.
I'm sure they could have alternatively arranged for the 3 leftovers to be closest to the park by have the pre-mid-august version have the drop-off area be spots 13-15, so I wonder if this informs us of their long-term assignments for the bus stops? But if that were true we'd see Pop Century, Art of Animation, and Caribbean Beach as the "leftovers" since they won't have bus stops once the Skyliner opens. Hmm, wait, I see that they are in spots 1, 2, & 3 furthest out on the peninsula.
Actually, looking at the Magic Kingdom bus stop map, I think they are going to completely remap the Disney resort stops because a lot of the resorts at Magic Kingdom have double bus stops.
Maybe they've organized them by relative fitness levels of the guests that they're getting from the magic band data?