Here is what the Athletic article says:
Oregon State and Washington State’s only path to the College Football Playoff in 2024 and 2025 is as an at-large bid. In a rebuilt Pac-12, the conference champion would have a shot at one of the five automatic bids provided to conference champions. All that’s been determined for the CFP in 2026 and beyond is that at least five conference champs have a spot, however big the field is, and the Big Ten and SEC will make the most money.
That sure sounds like to me that if they have the 8 schools they would be one of the 5 conference champs that get a bid unless it would go to a MWC team, which is doubtful after their best teams just left the conference.