Based on some things I'm hearing from the Orlando Chamber of Commerce, I think there's a decent chance WDW may not provide transportation. They'd waive parking fees, but if you visited you'd need to rent a car or a cab, and if you chose not to have your own car, you'd be dependent on Mears or Minnie Vans for interpark transportation. From what they say, WDW feels as though they can manage the ride queues with reduced capacity and staffing, but busses and monorails are a different concern, especially since they are often overcrowded, and WDW doesn't know how it will mitigate the bus traffic that's currently a necessity at the resort.
The folks are in the OCC, but I don't know how connected they are. But they've said a lot of their conversations have been about car availability and private transportation options.
Don't know how true it is, but that's what they told me today.