It is my understanding that this is the position they've taken for the moment. The big variable is availability under this new system. They have a decently firm idea on resort numbers, but in terms of how many ticket holders out there are going to want what dates, they don't know. I'm of the personal belief that after the first few weeks, availability shouldn't be as difficult/frustrating, but based on what I've heard, they're taking a "wait and see approach" in regard to many things, including APs. They could offer more down the road, but that's far from a guarantee. For AP holders, I'd look to DL's FlexPass to get an idea of what to expect, as has been discussed here for a while.
I'm reaching out to a few TAs to try to get answers on that. My original understanding was that the resort priority group would include any hotels that could be linked to
MDE (i.e. DS hotels, Hilton BC/WA Orlando, Swan & Dolphin, SoG, Four Seasons) but
that could have changed. That is old info.
As many have said, I'd sit tight (I know it's frustrating) until Disney reaches out to you regarding your resort stay.