Oregon will survive to be considered a P3. In my mind, the P5 designation just died this week.
The ACC's only chance is to grab WA and OR quickly or be demoted. Actually, the B1G and SEC can really shut the door on the thought that there is anything but a P2 by extending invitations to those 2 teams (or Clemson, Notre Dame, FSU, and Miami). The ACC is still really the only other conference that has to the power to still play the game so there might be a P3.
If I'm the B1G or SEC, I shut the door now and close out the game by poaching just a few more teams from ACC, B12 & PAC12. Do that, and you have ultimate control. They stop right here today with only the B1G adding USC/UCLA, this isn't over and the confusion and chaos continues.