If Washington wins out, it's going to be in the College Football Playoff. If Utah wins out, it probably will be in the CFP. A team from Oregon isn't going to win the Pac-12's North Division, and Arizona isn't going to win the South.
After that, it's mostly chaos, muddle and a lot of "What the heck?" halfway through the 2016 season, with the Pac-12 on the whole injury-ravaged and underperforming with just two top-25 teams. Heck, only Utah, Washington and Washington State have not had issues at quarterback, which at least partially explains why those three remain in the thick of things in the Conference of Quarterbacks with Halloween just around the corner.