ACC part won't happen. (at least not soon.)
Oregon is not liked by either USC or UCLA and as such those schools won't joyously accept that invite according to 1620 this morning. Also, Oregon isn't even a top 150 accredited academic institute so there's that too. Washington I can see but Oregon is, imo, a no.
Still believe the next group is the "all in" group of:
Washington, Stanford from the PAC
UNC, Miami, Notre Dame, Virginia (or Pitt) from the ACC
Maybe to reach 24, FSU and Pittsburgh (or Virginia)