With the existing Washington St, Oregon St., Pac-12 is becoming a true state school conference.
They still need two schools to get to the minimum required 8. Maybe they'll go after New Mexico State or Montana State to round up the state school conference, since going after two more MWC schools like San Jose State or Utah State would be very costly due to their contractual agreement (poaching 4 MWC schools already costs them 111 millions).